I feel like it was the idea that was the more obvious for this Jam.
The overall is pretty fine, you greatly polished the game and the result is cool! The movements were nice even if the jump is kind of weird at first, I really loved bunny hopping my way through x)
Backtracking in later levels was not so fun and it's maybe because I didn't finished the game, but the gameplay is quite repetitive, it's always about making pillars in order to cross gaps or ennemies. Maybe you could have made some variations, like using corpse to block upcoming projectiles or press a button on ground.
However it's still a nice game!