Submission #9993: ThunderAxe31's GB Contra: The Alien Wars in 07:39.919

Game Boy
baseline
(Submitted: Contra - The Alien Wars (USA).gb U)
BizHawk 2.10
27493 (cycle count 964520818)
59.777869860347586
35685
PowerOn
2e23477eb8738d7fb45e13b02f054422222c9c4f
Submitted by ThunderAxe31 on 10/28/2025 9:45 PM
Submission Comments
I wanted to implement the known improvements that I figured out years ago.
Also, I wanted to get the TAS updated for emulation accuracy and GBA mode for console verification (old movie is from 2017).

Tags

  • Intentional death
  • Hardest difficulty

Level 1 improvement

-4 frames thanks to improved boss fight

Level 3 improvemenets

-21 death abuse
-36 locusts: better rng manipulation + better optimization
-16 better midboss 1 tech
-0 different midboss 2 tech
+1 weird frame rules
-0 different strategy with multi-jump

Level 5 loss

+8 frames due to no death abuse available on final boss

Possible improvements

It's possible to kill level 1 boss faster by 1 frame, if you add a B press at frame 6180. This however causes the rest of the movie to desync horrendously. I've tried a LOT to fix that, and I couldn't due to uncontrollable changes of RNG behavior. Feel free to try yourself at risk of losing your sanity.

CoolHandMike: Claiming for judging.
CoolHandMike: Replacing movie file per submitter request.
CoolHandMike: This is an improvement over the [3453] GB Contra: The Alien Wars by ThunderAxe31 in 07:37.746 due to more accurate emulation. The newer one actually has the bios which adds several seconds alone.
Accepting to Standard.
Great job!

EZGames69: Processing...
Last Edited by EZGames69 on 11/15/2025 10:41 PM
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