My ld48 game, you gotta go from room to room and shoot the bad guys.

Mouse to aim
Left mouse to shoot
Right mouse to shoot your grappling hook
Space to unhook grappling hook
W, A, S, D to move

You might be able to get the game to run on other os's than windows. I just dont have any to test on, but the natives are there, it should just be the start.bat that needs to be replaced with the platform equivalent.