I don't really get the concept? Mabey Im just too stupid to figure it out? Probably? 

Really cool concept, Love the approach you took to the jams theme!

Visuals are relatively simple yet effective, The gameplay is a little bit tricky at times.

The physics of this game, and how mechanics like health interact with them seem kinda glitchy. When trying to smash as a sphere I instantly die. The cube is very clunky to move around, which seems intentional, given that it appears to have higher stats than the sphere.
That clunkyness makes sense in a combat scenario, but when you're just trying to traverse the map to get to the next fight, it's not very fun.
The premise itself could have potential, though. If the shapes/controls could be tweaked so that each one had it's strengths and weaknesses, but none of them were annoying to use, then this could be a pretty fun game.

I like the concept, unfortunately I kept clipping through the ground when using the slam mechanic. With a bit of refinement I think this could be a really awesome game. I especially like the sound and and art direction. I think the coordinate vector on the shapes are a nice touch.