This is a short platformer but with some neat rope mechanics and a lot of interesting (for the Gameboy) graphical elements.
I was hoping it would be a stress test for GBHawk but it didn't really happen given that this run still syncs in 2.5.2. It's console verified though so that's good.
I was able to improve a few sections thanks to some different strategies, most notably in level 2. I also got a pretty good Joker fight saving 35 frames over the old movie. It's about 150 frames faster overall.
If anyone wants to try to improve this please do, sometimes things work out in weird ways and you can save frames unexpectedly, although be warned it's not entirely sync friendly.
Samsara: File replaced with a 49 frame improvement.
feos: Per-room comparison shows that this movie is 212 frames faster than the current one, every level is faster, accepting over  GB Batman: Return of the Joker by adelikat in 03:41.13.