nice job! This is a really good idea for the theme! I thought movement and jumping were done really well, it felt smooth and easy to play.
Needs some polish for sure, in both artwork & the overall gameplay. For example, I was able to stick to the sides of the platforms, sometimes the pink platforms won't disappear when I landed on them, and (not sure if this was intentional), but I could pick up the key, die, then go straight to the blender. It's a great start though & props for making everything on your own!