submission for Alchemy Jam 6.

I was originally planning to make a platformer while making 橙，自由開火(Yuzumi Shoot) by yoloyee123, which turn out to be an arena shooter.

Now that old idea is finally implemented.

Known issue:

particle of jetpack cause screen freeze.

Credit:

https://exceptrea.itch.io/laboratory-tileset-revamped-lite

https://opengameart.org/content/super-dead-gunner

https://totuslotus.itch.io/pixel-coins

https://github.com/ACh-K/Cubic-11

https://aim-studios.itch.io/explosions-pixel-art

The Game Creator's Pack by Jonathan So

Guilty Gear Isuka OST - Might is Right but Tight