Shmups Wiki -- The Digital Library of Shooting Games - User contributions [en]

Under Defeat

2026-06-13T09:20:08Z

Reflector88:

[[File:UnderDefeat header.jpg|center]]

{{GameInfobox
|bordercolor = black
|title = Under Defeat
|background = #f8f8f8
|image = UnderDefeat flyer.jpg
|caption = Flyer
|width = 324px;
|imagescalepx = 180px

|developer = G.rev
|
|music = Shinji Hosoe
|
|program = Masakazu Takeda
|
|art = Nanashiki Yamamoto
|
|releasedate = Oct 27, 2005

|previousgame = Senko no Ronde
|nextgame = Mamorukun Curse!
}}

''Under Defeat'' is a 2005 vertical-scrolling shoot 'em up developed by [[G.rev]] for the Sega NAOMI arcade board. In 2012, ''Under Defeat HD'' was released for PS3 and Xbox 360, featuring a 16:9 mode and updated graphics. Yet another revision, ''Under Defeat HD+'' is available on most modern platforms.

The game is set in an alternate history WWII where two powers, the Empire and the Union are at war. You play as two German helicopter pilots in service to the Empire, fighting back against the Union.

__TOC__
{{clear}}

== Gameplay Overview ==
''Under Defeat'' uses a 3D engine, and the entire screen is tilted forward slightly. Your helicopter has two weapons: a primary shot, and an option. The primary shot consists of two anti-air vulcans and a center vulcan that can target both air and ground targets. The Option is a drone that can be released to fire independently.

Both the primary shot and the option can be aimed by strafing. The game features two aiming styles, Normal and Reverse. Normal aims in the direction of movement, and Reverse aims in the opposite direction.

=== Controls ===
----
* '''A:''' Shoot
* '''A (Charged):''' The Option meter charges when you aren't shooting. Press A while fully charged to release your Option.
* '''B:''' Bomb

=== Ships ===
----
NOTE: The original arcade and Dreamcast versions only include the VKL 5.03.
{| class="wikitable" style="text-align: center"
|-
! Name !! Desc
|-
| '''VKL 5.03''' || Fires two streams of bullets directly forward. Option must be charged.
|-
| '''VKL 7.04''' || Fires two streams of bullets in a wider angle. No Option; the Option projectile is included with your primary shot.
|-
| '''VKL 6.02''' || Fires two homing rockets. Option must be charged.
|}

=== Weapons ===
----
There are three Option types. You start the game with the Vulcan and switch out your Option type by grabbing the Option item, which continuously cycles through the three types as it bounces around the screen. Picking up an Option item while your meter is on cooldown will automatically reset the cooldown, allowing you to charge again immediately.

{| class="wikitable" style="text-align: center"
|-
! Option !! Pickup !! Power !! Charge Speed !! Delay !! Duration !! Cooldown
|-
| '''Vulcan''' || [[File:Underdefeat vulcan.png|100px|frameless|center]] || Weak || 0.5 || 0 || 7 || 1.5
|-
| '''Cannon''' || [[File:Underdefeat cannon.png|100px|frameless|center]] || Medium || 0.83 || 0.5 || 8 || 3
|-
| '''Rocket''' || [[File:Underdefeat rocket.png|100px|frameless|center]] || Strong || 1.37 || 1 || 2 || 5.44
|}

The player can collect up to a maximum of 6 Bombs. Bombs render the player invincible for a short period of time while also damaging everything on screen.

=== Rank ===
----
The game features a rank system. Each stage has a base rank value. Your rank is calculated by adding the base value to a "rank offset", which can increase or decrease depending on your actions. Rank offset increases at the end of each stage when no-missing and/or no-bombing the stage. Dying decreases the rank offset by 1. Because the game has no extends (score-based or otherwise), there is no reasonable way to mitigate rank, nor is it worth doing so.

Rank primarily affects enemy fire rate and bullet speed. This is especially pronounced on the second loop, where base rank is dramatically increased. When practicing stages, it is advisable to set the rank offset to +10 in order to simulate the worst-case scenario.

=== Scoring ===
----
Enemies destroyed by the Option grant double the points, meaning that enemies with high score values are a priority target. Picking up the same type of option grants a flat 5000. Tick points are gained by shooting both destructible and indestructible objects. You also receive the following bonuses at the end of each stage:

* Skill Assessment - Proportional to Contribution Percentage. Doubled if Contribution is 100%, doubled at 1 life, and tripled at 0 lives.
* Fuel Conservation- The amount of time left on the boss timer multiplied by 1000.
* Ammo Conservation - The number of bombs left over at the end of a stage multiplied by 10000.

Your Contribution Percentage is the percentage of "contribution targets" that were destroyed during the stage. Many high-health enemies such as large tanks and turrets are fixed contribution targets, and background elements such as the howitzers in stage 1 can also be contribution targets. Random zako can also spawn as contribution targets, denoted by striped paint.

=== Loops ===
----
The game features a second loop with increased difficulty. In order to reach the second loop, one must clear the game with an average Contribution Percentage of >95%.
The stages are mirrored and feature alternate environments. Since base rank starts at +19, enemies fire more often and bullets are faster. Some enemies have different behaviors, and others spawn revenge bullets on death.

== Strategy ==
<div style='text-align: center;'>
''See [[(Template Page)/Strategy]] for '''stage maps''', '''enemy and boss descriptions''', '''walkthroughs''', and '''advanced play strategies'''.''
</div>
----
Target prioritization and screen management are highly important due to your narrow primary shot. If too many enemies clump up on screen, it's easy to get overwhelmed by intersecting bullet patterns. If you route correctly, micro-dodging is rarely a necessity.

The Option is key to both scoring and survival. The Rocket does massive damage against bosses and can one-shot large groups of enemies, while the Vulcan and Cannon can supplement your DPS and/or cover blind spots. The Option is immune to bullets, but can be destroyed if it collides with an enemy.

== Version Differences ==
The Dreamcast port is identical to the arcade version. The HD version has slowdown when played in TATE mode. HD+ fixes the slowdown issues.

== Trivia ==
* The cows at the beginning of stage 1 are possibly a reference to the background cows that appear in every Yagawa shoot 'em up (Battle Garegga, Ibara, etc.)
* ''Under Defeat'' was one of the last games released on the Sega Dreamcast. The last five games released on the platform were all shoot 'em ups, the others being ''Trizeal'', ''Radirgy'', ''Triggerheart Exelica'', and ''Karous''.

== References & Contributors ==
1. Page text, info, and formatting by [[User:Reflector88|Reflector88]]

Under Defeat

2026-06-13T05:14:46Z

Reflector88:

[[File:UnderDefeat header.jpg|center]]

{{GameInfobox
|bordercolor = black
|title = Under Defeat
|background = #f8f8f8
|image = UnderDefeat flyer.jpg
|caption = Flyer
|width = 324px;
|imagescalepx = 180px

|developer = G.rev
|
|music = Shinji Hosoe
|
|program = Masakazu Takeda
|
|art = Nanashiki Yamamoto
|
|releasedate = Oct 27, 2005

|previousgame = Senko no Ronde
|nextgame = Mamorukun Curse!
}}

''Under Defeat'' is a 2005 vertical-scrolling shoot 'em up developed by [[G.rev]] for the Sega NAOMI arcade board. In 2012, ''Under Defeat HD'' was released for PS3 and Xbox 360, featuring a 16:9 mode and updated graphics. Yet another revision, ''Under Defeat HD+'' is available on most modern platforms.

The game is set in an alternate history WWII where two powers, the Empire and the Union are at war. You play as two German helicopter pilots in service to the Empire, fighting back against the Union.

__TOC__
{{clear}}

== Gameplay Overview ==
Like G.Rev's other titles, ''Under Defeat'' uses a 3D engine. The entire screen is on a slight tilt, and bullets can be intercepted by buildings depending on the player's position relative to the target. Your helicopter fires three streams of bullets. Only the center stream is capable of hitting grounded targets.

The game features two aiming styles, Normal and Reverse. Normal aims in the direction of movement, and Reverse aims in the direction opposite to movement.

=== Controls ===
----
* '''A:''' Shoot
* '''A (Charged):''' The Option meter charges when you aren't shooting. Press A while fully charged to release your Option.
* '''B:''' Bomb

=== Ships ===
----
NOTE: The original arcade and Dreamcast versions only include the VKL 5.03.
{| class="wikitable" style="text-align: center"
|-
! Name !! Desc
|-
| '''VKL 5.03''' || Fires two streams of bullets directly forward. Option must be charged.
|-
| '''VKL 7.04''' || Fires two streams of bullets in a wider angle. No Option; the Option projectile is included with your primary shot.
|-
| '''VKL 6.02''' || Fires two homing rockets. Option must be charged.
|}

=== Weapons ===
----
There are three Option types. You start the game with the Vulcan and switch out your Option type by grabbing the Option item, which continuously cycles through the three types as it bounces around the screen. Picking up an Option while your meter is on cooldown will automatically reset the cooldown, allowing you to charge again immediately.

{| class="wikitable" style="text-align: center"
|-
! Option !! Pickup !! Power !! Charge Speed !! Delay !! Duration !! Cooldown
|-
| '''Vulcan''' || [[File:Underdefeat vulcan.png|100px|frameless|center]] || Weak || 0.5 || 0 || 7 || 1.5
|-
| '''Cannon''' || [[File:Underdefeat cannon.png|100px|frameless|center]] || Medium || 0.83 || 0.5 || 8 || 3
|-
| '''Rocket''' || [[File:Underdefeat rocket.png|100px|frameless|center]] || Strong || 1.37 || 1 || 2 || 5.44
|}

The player can collect up to a maximum of 6 Bombs. Bombs render the player invincible for a short period of time while also damaging everything on screen.

=== Rank ===
----
The game features a rank system, but it has little bearing on strategy. Each stage has a base rank value. Your rank is calculated by adding the base value to a "rank offset", which can increase or decrease depending on your actions.

Rank offset increases at the end of each stage when no-missing and/or no-bombing the stage. Dying decreases the rank offset by 1. Because the game has no extends (score-based or otherwise), there is no reasonable way to mitigate rank, nor is it worth doing so.

Rank primarily affects the speed of enemy bullets. This is especially pronounced on the second loop, where base rank is dramatically increased.

When practicing stages, it is advisable to set rank offset to +10 in order to simulate the worst-case scenario.

=== Scoring ===
----
Enemies destroyed by the Option grant double the points. Picking up the same type of option grants a flat 5000. Tick points are gained by shooting both destructible and indestructible objects. You also receive the following bonuses at the end of each stage:

* Skill Assessment - Proportional to Contribution Percentage. Doubled if 100% and also increases the less lives you have.
* Fuel Conservation- The amount of time left on the boss timer multiplied by 1000.
* Ammo Conservation - The number of bombs left over at the end of a stage multiplied by 10000.

Your Contribution Percentage is the percentage of "contribution targets" that were destroyed during the stage. Many high-health enemies such as large tanks and turrets are fixed contribution targets, and background elements such as the howitzers in stage 1 can also be contribution targets. Random enemies can also be marked as contribution targets with striped paint.

=== Loops ===
----
The game features a second loop with increased difficulty. In order to reach the second loop, one must clear the game with an average Contribution Percentage of >95%. The base rank value of stage 2-1 is +19, which is double that of stage 1-5, so bullets are noticeably faster. The screen is tinted a different color, the stages are mirrored, and certain enemies have new behaviors.

== Strategy ==
<div style='text-align: center;'>
''See [[(Template Page)/Strategy]] for '''stage maps''', '''enemy and boss descriptions''', '''walkthroughs''', and '''advanced play strategies'''.''
</div>
----
Target prioritization and screen management are highly important due to your narrow primary shot. If too many enemies clump up on screen, it's easy to get overwhelmed by intersecting bullet patterns. The game rarely requires micro-dodging if you route correctly.

The Option is key to both scoring and survival. The Rocket does massive damage against bosses and can one-shot large groups of enemies, while the Vulcan and Cannon can supplement your DPS and/or cover blind spots. The Option is immune to bullets, but can be destroyed if it collides with an enemy.

When scoring, large enemies with high score values are priority targets.

== Version Differences ==
The arcade and Dreamcast ports are identical. The HD version has slowdown when played in TATE mode that trivializes the final boss. HD+ fixes the slowdown issues.

== Trivia ==
* The cows at the beginning of stage 1 are possibly a reference to the background cows that appear in every Yagawa shoot 'em up (Battle Garegga, Ibara, etc.)

== References & Contributors ==
1. Page text, info, and formatting by [[User:Reflector88|Reflector88]]

Under Defeat

2026-06-13T02:01:46Z

Reflector88:

[[File:UnderDefeat header.jpg|center]]

{{GameInfobox
|bordercolor = black
|title = Under Defeat
|background = #f8f8f8
|image = UnderDefeat flyer.jpg
|caption = Flyer
|width = 324px;
|imagescalepx = 180px

|developer = G.rev
|
|music = Shinji Hosoe
|
|program = Masakazu Takeda
|
|art = Nanashiki Yamamoto
|
|releasedate = Oct 27, 2005

|previousgame = Senko no Ronde
|nextgame = Mamorukun Curse!
}}

''Under Defeat'' is a 2005 vertical-scrolling shoot 'em up developed by [[G.Rev]] for the Sega NAOMI arcade board. In 2012, ''Under Defeat HD'' was released for PS3 and Xbox 360, featuring a 16:9 mode and updated graphics. Yet another revision, ''Under Defeat HD+'' is available on most modern platforms.

The game is set in an alternate history WWII where two powers, the Empire and the Union are at war. You play as two German helicopter pilots in service to the Empire, fighting back against the Union.

__TOC__
{{clear}}

== Gameplay Overview ==
Like G.Rev's other titles, ''Under Defeat'' uses a 3D engine. The entire screen is on a slight tilt, and bullets can be intercepted by buildings depending on the player's position relative to the target. Your helicopter fires three streams of bullets. Only the center stream is capable of hitting grounded targets.

The game features two aiming styles, Normal and Reverse. Normal aims in the direction of movement, and Reverse aims in the direction opposite to movement.

=== Controls ===
----
* '''A:''' Shoot
* '''A (Charged):''' The Option meter charges when you aren't shooting. Press A while fully charged to release your Option.
* '''B:''' Bomb

=== Ships ===
----
NOTE: The original arcade and Dreamcast versions only include the VKL 5.03.
{| class="wikitable" style="text-align: center"
|-
! Name !! Desc
|-
| '''VKL 5.03''' || Fires two streams of bullets directly forward. Option must be charged.
|-
| '''VKL 7.04''' || Fires two streams of bullets in a wider angle. No Option; the Option projectile is included with your primary shot.
|-
| '''VKL 6.02''' || Fires two homing rockets. Option must be charged.
|}

=== Weapons ===
----
There are three Option types. You start the game with the Vulcan and switch out your Option type by grabbing the Option item, which continuously cycles through the three types as it bounces around the screen. Picking up an Option while your meter is on cooldown will automatically reset the cooldown, allowing you to charge again immediately.

{| class="wikitable" style="text-align: center"
|-
! Option !! Pickup !! Power !! Charge Speed !! Delay !! Duration !! Cooldown
|-
| '''Vulcan''' || [[File:Underdefeat vulcan.png|100px|frameless|center]] || Weak || 0.5 || 0 || 7 || 1.5
|-
| '''Cannon''' || [[File:Underdefeat cannon.png|100px|frameless|center]] || Medium || 0.83 || 0.5 || 8 || 3
|-
| '''Rocket''' || [[File:Underdefeat rocket.png|100px|frameless|center]] || Strong || 1.37 || 1 || 2 || 5.44
|}

The player can collect up to a maximum of 6 Bombs. Bombs render the player invincible for a short period of time while also damaging everything on screen.

=== Rank ===
----
The game features a rank system, but it has little bearing on strategy. Each stage has a base rank value. Your rank is calculated by adding the base value to a "rank offset", which can increase or decrease depending on your actions.

Rank offset increases at the end of each stage when no-missing and/or no-bombing the stage. Dying decreases the rank offset by 1. Because the game has no extends (score-based or otherwise), there is no reasonable way to mitigate rank, nor is it worth doing so.

Rank primarily affects the speed of enemy bullets. This is especially pronounced on the second loop, where base rank is dramatically increased.

When practicing stages, it is advisable to set rank offset to +10 in order to simulate the worst-case scenario.

=== Scoring ===
----
Enemies destroyed by the Option grant double the points. Picking up the same type of option grants a flat 5000. Tick points are gained by shooting both destructible and indestructible objects. You also receive the following bonuses at the end of each stage:

* Skill Assessment - Proportional to Contribution Percentage. Doubled if 100% and also increases the less lives you have.
* Fuel Conservation- The amount of time left on the boss timer multiplied by 1000.
* Ammo Conservation - The number of bombs left over at the end of a stage multiplied by 10000.

Your Contribution Percentage is the percentage of "contribution targets" that were destroyed during the stage. Many high-health enemies such as large tanks and turrets are fixed contribution targets, and background elements such as the howitzers in stage 1 can also be contribution targets. Random enemies can also be marked as contribution targets with striped paint.

=== Loops ===
----
The game features a second loop with increased difficulty. In order to reach the second loop, one must clear the game with an average Contribution Percentage of >95%. The base rank value of stage 2-1 is +19, which is double that of stage 1-5, so bullets are noticeably faster. The screen is tinted a different color, the stages are mirrored, and certain enemies have new behaviors.

== Strategy ==
<div style='text-align: center;'>
''See [[(Template Page)/Strategy]] for '''stage maps''', '''enemy and boss descriptions''', '''walkthroughs''', and '''advanced play strategies'''.''
</div>
----
Target prioritization and screen management are highly important due to your narrow primary shot. If too many enemies clump up on screen, it's easy to get overwhelmed by intersecting bullet patterns. The game rarely requires micro-dodging if you route correctly.

The Option is key to both scoring and survival. The Rocket does massive damage against bosses and can one-shot large groups of enemies, while the Vulcan and Cannon can supplement your DPS and/or cover blind spots. The Option is immune to bullets, but can be destroyed if it collides with an enemy.

When scoring, large enemies with high score values are priority targets.

== Version Differences ==
The arcade and Dreamcast ports are identical. The HD version has slowdown when played in TATE mode that trivializes the final boss. HD+ fixes the slowdown issues.

== Trivia ==
* The cows at the beginning of stage 1 are possibly a reference to the background cows that appear in every Yagawa shoot 'em up (Battle Garegga, Ibara, etc.)

== References & Contributors ==
1. Page text, info, and formatting by [[User:Reflector88|Reflector88]]

Under Defeat

2026-06-13T01:59:17Z

Reflector88:

[[File:UnderDefeat header.jpg|center]]

{{GameInfobox
|bordercolor = black
|title = Under Defeat
|background = #f8f8f8
|image = UnderDefeat flyer.jpg
|width = 324px;
|imagecaption = Flyer
|imagescalepx = 180px

|developer = G.rev
|
|music = Shinji Hosoe
|
|program = Masakazu Takeda
|
|art = Nanashiki Yamamoto
|
|releasedate = Oct 27, 2005

|previousgame = Senko no Ronde
|nextgame = Mamorukun Curse!
}}

''Under Defeat'' is a 2005 vertical-scrolling shoot 'em up developed by [[G.Rev]] for the Sega NAOMI arcade board. In 2012, ''Under Defeat HD'' was released for PS3 and Xbox 360, featuring a 16:9 mode and updated graphics. Yet another revision, ''Under Defeat HD+'' is available on most modern platforms.

The game is set in an alternate history WWII where two powers, the Empire and the Union are at war. You play as two German helicopter pilots in service to the Empire, fighting back against the Union.

__TOC__
{{clear}}

== Gameplay Overview ==
Like G.Rev's other titles, ''Under Defeat'' uses a 3D engine. The entire screen is on a slight tilt, and bullets can be intercepted by buildings depending on the player's position relative to the target. Your helicopter fires three streams of bullets. Only the center stream is capable of hitting grounded targets.

The game features two aiming styles, Normal and Reverse. Normal aims in the direction of movement, and Reverse aims in the direction opposite to movement.

=== Controls ===
----
* '''A:''' Shoot
* '''A (Charged):''' The Option meter charges when you aren't shooting. Pressing A while fully charged to release your Option.
* '''B:''' Bomb

=== Ships ===
----
NOTE: The original arcade and Dreamcast versions only include the VKL 5.03.
{| class="wikitable" style="text-align: center"
|-
! Name !! Desc
|-
| '''VKL 5.03''' || Fires two streams of bullets directly forward. Option must be charged.
|-
| '''VKL 7.04''' || Fires two streams of bullets in a wider angle. No Option; the Option projectile is included with your primary shot.
|-
| '''VKL 6.02''' || Fires two homing rockets. Option must be charged.
|}

=== Weapons ===
----
There are three Option types. You start the game with the Vulcan and switch out your Option type by grabbing the Option item, which continuously cycles through the three types as it bounces around the screen. Picking up an Option while your meter is on cooldown will automatically reset the cooldown, allowing you to charge again immediately.

{| class="wikitable" style="text-align: center"
|-
! Option !! Pickup !! Power !! Charge Speed !! Delay !! Duration !! Cooldown
|-
| '''Vulcan''' || [[File:Underdefeat vulcan.png|100px|frameless|center]] || Weak || 0.5 || 0 || 7 || 1.5
|-
| '''Cannon''' || [[File:Underdefeat cannon.png|100px|frameless|center]] || Medium || 0.83 || 0.5 || 8 || 3
|-
| '''Rocket''' || [[File:Underdefeat rocket.png|100px|frameless|center]] || Strong || 1.37 || 1 || 2 || 5.44
|}

The player can collect up to a maximum of 6 Bombs. Bombs render the player invincible for a short period of time while also damaging everything on screen.

=== Rank ===
----
The game features a rank system, but it has little bearing on strategy. Each stage has a base rank value. Your rank is calculated by adding the base value to a "rank offset", which can increase or decrease depending on your actions.

Rank offset increases at the end of each stage when no-missing and/or no-bombing the stage. Dying decreases the rank offset by 1. Because the game has no extends (score-based or otherwise), there is no reasonable way to mitigate rank, nor is it worth doing so.

Rank primarily affects the speed of enemy bullets. This is especially pronounced on the second loop, where base rank is dramatically increased.

When practicing stages, it is advisable to set rank offset to +10 in order to simulate the worst-case scenario.

=== Scoring ===
----
Enemies destroyed by the Option grant double the points. Picking up the same type of option grants a flat 5000. Tick points are gained by shooting both destructible and indestructible objects. You also receive the following bonuses at the end of each stage:

* Skill Assessment - Proportional to Contribution Percentage. Doubled if 100% and also increases the less lives you have.
* Fuel Conservation- The amount of time left on the boss timer multiplied by 1000.
* Ammo Conservation - The number of bombs left over at the end of a stage multiplied by 10000.

Your Contribution Percentage is the percentage of "contribution targets" that were destroyed during the stage. Many high-health enemies such as large tanks and turrets are fixed contribution targets, and background elements such as the howitzers in stage 1 can also be contribution targets. Random enemies can also be marked as contribution targets with striped paint.

=== Loops ===
----
The game features a second loop with increased difficulty. In order to reach the second loop, one must clear the game with an average Contribution Percentage of >95%. The base rank value of stage 2-1 is +19, which is double that of stage 1-5, so bullets are noticeably faster. The screen is tinted a different color, the stages are mirrored, and certain enemies have new behaviors.

== Strategy ==
<div style='text-align: center;'>
''See [[(Template Page)/Strategy]] for '''stage maps''', '''enemy and boss descriptions''', '''walkthroughs''', and '''advanced play strategies'''.''
</div>
----
Target prioritization and screen management are highly important due to your narrow primary shot. If too many enemies clump up on screen, it's easy to get overwhelmed by intersecting bullet patterns. The game rarely requires micro-dodging if you route correctly.

The Option is key to both scoring and survival. The Rocket does massive damage against bosses and can one-shot large groups of enemies, while the Vulcan and Cannon can supplement your DPS and/or cover blind spots. The Option is immune to bullets, but can be destroyed if it collides with an enemy.

When scoring, large enemies with high score values are priority targets.

== Version Differences ==
The arcade and Dreamcast ports are identical. The HD version has slowdown when played in TATE mode that trivializes the final boss. HD+ fixes the slowdown issues.

== Trivia ==
* The cows at the beginning of stage 1 are possibly a reference to the background cows that appear in every Yagawa shoot 'em up (Battle Garegga, Ibara, etc.)

== References & Contributors ==
1. Page text, info, and formatting by [[User:Reflector88|Reflector88]]

Under Defeat

2026-06-13T00:56:46Z

Reflector88:

[[File:UnderDefeat header.jpg|center]]

{{GameInfobox
|bordercolor = black
|title = Under Defeat
|background = #f8f8f8
|image = UnderDefeat flyer.jpg
|width = 324px;
|imagecaption = Flyer
|imagescalepx = 180px

|developer = G.rev
|
|music = Shinji Hosoe
|
|program = Masakazu Takeda
|
|art = Nanashiki Yamamoto
|
|releasedate = Oct 27, 2005

|previousgame = Senko no Ronde
|nextgame = Mamorukun Curse!
}}

''Under Defeat'' is a 2005 vertical-scrolling shoot 'em up developed by [[G.Rev]] for the Sega NAOMI arcade board. It was one of the last games released on the Sega Dreamcast.

The game is set in an alternate history WWII where two powers, the Empire and the Union are at war. You play as two German helicopter pilots in service to the Empire, fighting back against the Union's attack.

__TOC__
{{clear}}

== Gameplay Overview ==
Like G.Rev's other titles, ''Under Defeat'' uses a 3D engine. The entire screen is on a slight tilt, and your bullets can sometimes be intercepted by intervening buildings depending on the angle. Your helicopter fires three streams of bullets. Only the center stream is capable of hitting grounded targets.

The game features two aiming styles, Normal and Reverse. Normal aims in the direction of movement, and Reverse aims in the direction opposite to movement.

=== Controls ===
----
* '''A:''' Shoot
* '''A (Charged):''' The Option meter charges when you aren't shooting. Pressing A while fully charged to release your Option.
* '''B:''' Bomb

=== Characters / Ships / Styles ===
----
The original arcade game only includes one ship. The HD remake includes three others.

=== Weapons ===
----
{| class="wikitable" style="text-align: center"
|-
! Option !! Pickup !! Power !! Charge Speed !! Delay !! Duration !! Cooldown
|-
| '''Vulcan''' || [[File:Underdefeat vulcan.png|100px|frameless|center]] || Weak || 0.5 || 0 || 7 || 1.5
|-
| '''Cannon''' || [[File:Underdefeat cannon.png|100px|frameless|center]] || Medium || 0.83 || 0.5 || 8 || 3
|-
| '''Rocket''' || [[File:Underdefeat rocket.png|100px|frameless|center]] || Strong || 1.37 || 1 || 2 || 5.44
|}

The player can collect up to a maximum of 6 Bombs. Bombs render the player invincible for a short period of time while also damaging everything on screen.

=== Rank ===
----
The game features a rank system, but it has little bearing on strategy. Each stage has a base rank value. Your rank is calculated by adding the base value to a "rank offset", which can increase or decrease depending on your actions.

Rank offset increases at the end of each stage when no-missing and/or no-bombing the stage. Dying decreases the rank offset by 1. Because the game has no extends (score-based or otherwise), there is no reasonable way to mitigate rank, nor is it worth doing so.

Rank primarily affects the speed of enemy bullets. This is especially pronounced on the second loop, where base rank is dramatically increased.

When practicing stages, it is advisable to set rank offset to +10 in order to simulate the worst-case scenario.

=== Scoring ===
----
Enemies destroyed by the Option give double the points. Tick points are gained by shooting both destructible and indestructible objects. You also receive the following bonuses at the end of each stage:

* Skill Assessment - Proportional to Contribution Percentage. Doubled if 100% and also increases the less lives you have.
* Fuel Conservation- The amount of time left on the boss timer multiplied by 1000.
* Ammo Conservation - The number of bombs left over at the end of a stage multiplied by 10000.

Your Contribution Percentage is the percentage of "contribution targets" that were destroyed during the stage. Many high-health enemies such as large tanks and turrets are fixed contribution targets, and background elements such as the howitzers in stage 1 can also be contribution targets. Random enemies can also be marked as contribution targets, in which case they will spawn with a striped paint job.

=== Loops ===
----
The game features a second loop with increased difficulty. In order to reach the second loop, one must clear the game with an average Contribution Percentage of >95%. The base rank value of stage 2-1 is +19, which is double that of stage 1-5. The screen is tinted a different color, the stages are mirrored, and certain enemies have different behaviors.

== Strategy ==
<div style='text-align: center;'>
''See [[(Template Page)/Strategy]] for '''stage maps''', '''enemy and boss descriptions''', '''walkthroughs''', and '''advanced play strategies'''.''
</div>
----
The game has a higher degree of randomness than in most other shmups. Many enemies have random bullet patterns, meaning that macro-dodging is preferable in most situations. Many of the bullet patterns are random, and the placement of contribution enemies is also random. Large enemies with high score values are priority targets.

== Trivia ==
* The cows at the beginning of stage 1 are possibly a reference to the background cows that appear in every Yagawa shoot 'em up (Battle Garegga, Ibara, etc.)

== References & Contributors ==
1. Page text, info, and formatting by [[User:Reflector88|Reflector88]]

Under Defeat

2026-06-13T00:23:41Z

Reflector88: Created page with "center {{GameInfobox |bordercolor = black |title = Under Defeat |background = #f8f8f8 |image = UnderDefeat flyer.jpg |width = 324px; |imagecap..."

File:UnderDefeat header.jpg

2026-06-12T23:09:33Z

Reflector88:

File:UnderDefeat flyer.jpg

2026-06-12T23:09:20Z

Reflector88:

File:Underdefeat cannon.png

2026-06-12T22:33:10Z

Reflector88:

File:Underdefeat vulcan.png

2026-06-12T22:33:02Z

Reflector88:

File:Underdefeat rocket.png

2026-06-12T22:32:43Z

Reflector88:

G.rev

2026-06-12T21:41:53Z

Reflector88:

[[File:GRev_logo.png|200px|center]]

== G.rev ==
'''G.rev''' is a Japanese game development company founded by former Taito members, many of which worked on Darius and Rayforce.

While developing [[Border Down]], the company worked on the CG modeling for [[Ikaruga]] and [[Gradius V]].

===== Shooting games developed by G.rev =====
{| class="wikitable sortable"
|-
! Game !! Year
|-
| ''[[Border Down]]'' || 2003
|-
| ''[[Senko no Ronde]]'' || 2005
|-
| ''[[Under Defeat]]'' || 2005
|-
| ''[[Mamorukun wa Norowarete Shimatta]]'' (Mamorukun Curse!) || 2008
|-
| ''[[Senko no Ronde DUO]]'' || 2009
|-
| ''[[Seisou Kouki Strania]]'' (Strania -The Stella Machina-) || 2011
|-
| ''[[Kokuga]]'' || 2012
|-
| ''[[Strania - The Stella Machina]]'' || 2015
|}

G.rev

2026-06-12T21:35:12Z

Reflector88:

[[File:GRev_logo.png|200px|center]]

== G.Rev ==
'''G.Rev''' is a Japanese game development company founded by former Taito members, many of which worked on Darius and Rayforce.

While developing [[Border Down]], the company worked on the CG modeling for [[Ikaruga]] and [[Gradius V]].

===== Shooting games developed by G.Rev =====
{| class="wikitable sortable"
|-
! Game !! Year
|-
| ''[[Border Down]]'' || 2003
|-
| ''[[Senko no Ronde]]'' || 2005
|-
| ''[[Under Defeat]]'' || 2005
|-
| ''[[Mamorukun wa Norowarete Shimatta]]'' (Mamorukun Curse!) || 2008
|-
| ''[[Senko no Ronde DUO]]'' || 2009
|-
| ''[[Seisou Kouki Strania]]'' (Strania -The Stella Machina-) || 2011
|-
| ''[[Kokuga]]'' || 2012
|-
| ''[[Strania - The Stella Machina]]'' || 2015
|}