Great story hook with an nifty style. I did have a hard time telling what was a platform, a wall, or a background though. There wasn't enough contrast between background and mid-ground.
I appreciated the slime enemy design, that's some of the best enemy design I've seen in the jam so far. The randomized throw direction and arc makes for an interesting challenge that leans into your jump mechanic. Plus, they telegraph well, so it feels fair. The hitbox on the projectile felt too large to be fair, though.
I really have no idea where to go after reaching the second room. I tried all the way to the right, but it's a wall. Falling down = death. I'm lost.