I really enjoyed playing this game and definitely played it for much longer than most other submissions! I've seen this concept applied in other places: using your previous deaths as fuel to propel you to victory. But this game executed it in the best way I have seen yet! The level design was masterful, the difficulty curve just right, and the whole experience felt complete and polished.
Figuring out the levels was tricky but just the right difficulty. At point I did get stuck and had to resort to glitching through a dead body to move forward (wow, that really sounds weird) but once I passed it, it was back to smooth and happy.
The art, animations, and music help make this game alive, which makes it even more fun to play! High praise for you in those categories. My only suggestion would be to add more sound effects: completeing a level, dying, pushing, etc.
What a charming and unique entry! An unconventional and abstract take on the theme executed masterfully - I am definitely a fan!