Very cursed game, as I like them, extremely buggy, wacky graphics !
Some bugs are frustrating though, you can get stuck in walls and have to relaunch the game (the fact that you have to go through game maker installer every time is anoying). Also you dont know what to do at the beginning and get soft locked because you didnt shoot the first enemies to open the door. And sometimes the first door just not open, you have to die and restart.
Glad I sticked to the end because the boss battle was epic :p