Sick ass game, one of my favorites in the jam, really well done :) The intro cut scene does a great job of providing context for the crazy situation and strikes some nice moments of poignancy and humor without over staying its welcome. My first impression when spawning into the game was awesome; the animated UI and pulsating music with the squishy sfx made for such a cool vibe, the ambiance is perfect. I do wish there had been some variance in the footstep sounds, even just randomly pitching them up and down a bit would have gone a long way imo. The player sprite is very cool, the little lean he does when idling has lots of personality.
There's sooo many little details of juice: the blood trails of enemies, player death/respawn animations, the short black and white cutscene after killing a heart, etc. It all adds up to a very polished experience. I would recommend toning down the screenshake a bit, since its a bullet hell basically every moment the player is either shooting something or getting hit which makes for a near constant screenshake that gets a bit annoying after a while. The variety of enemies is very impressive and the different attack patterns for each boss kept things fun throughout. The player feels good to move and satisfying to shoot with. I did feel that the player bullets didn't really fit with the rest of the aesthetic, but not a big deal. Also, very much appreciated not having to start from 0/5 hearts after dying, great decision, especially for a jam game.
Overall, I had a blast with your game and the presentation and overall aesthetic is an absolute home run in my opinion. I do think the theme interpretation is a bit weak, and didn't really seem to fit into the game much beyond the fact that the player is running around one giant room. Really great entry, and I think your studying and work paid off big time! Keep up the great work!!
edit: GameMaker Gang! legggooo