I had fun with the platforming and puzzle elements! I know its been said elsewhere, but it didn't really feel like the squares were dying when you reset them. A possible direction you could take this in is by having environmental hazards to die on, rather than a keypress. This would feel more in-line with the theme and could spice up the puzzle element as well. Just a thought though, nice job overall!
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Thanks for the feedback! i actually quite like your idea's suggestions, i may add for future levels, but i don't think i would make it a core mechanic for after the jam since i'm fine with the current mechanics
EDIT: I've also didn't make the death concept be more punishing/hard to do since i originally thought that just its first mechanic as it is now was already too hard for people to understand, which i found out to be wrong.