I like your game mechanic taking in the theme. But i've been at your game for a good 15 minutes and I'm still at the spikes XD
I will keep trying another time for the sake of completionism but as it stands, here are a few points I took:
-I think that a little tweaking of the camera or something to aid the depth perception could really help this out!-
-I feel landing on spikes shouldn't create a glide. I was trying to strategically place my corpses to walk on them next but they would always glide way further than where they'd land so maybe that would be something to look into as well.
-Adding checkpoints when you complete a puzzle may render the frustration of starting anew every loss (or at least i havent reached checkpoints yet if there are) because building up 60 seconds of getting back to the puzzle to lose it again and then needing another minute to get back, it's a little repetitive. On that note, you should definitely enable the run ability for the first dude to get to said puzzle quicker
-I love the art though. The atmosphere is there, and this game has a lot of potential. I just feel bad I couldn't get as far as I could have during rating period :c
I hope that I can play this when it'S more polished because I love these kinds of games. Congrats on your submission on this gamejam!