Hey,
The game is obviously very simple, so there is no point in writing in too much detail and I'm pretty sure You're perfectly aware of how the game plays.
From a player perspective I must say that it is very hard to understand what is going on, how the shapes operate. As far as I am aware, from what I read on game page, the shapes should behave as each other, so the cubic shape should roll and the sphere should act in a more stiff way and this is definetely true, but just from playing the game it is very hard to understand. The cuboid shape was acting in a way, falling from side to side that I could associate with a cuboid in a video game it didn't ring my bell that it is acting like a sphere is supposed to. On the other hand the sphere was just moving very poorly which was frustrating. It isn't really explained why the cuboid can walk on water shile sphere can't etc.
Lack of sounds and music is also making the game less enjoyable and harder to understand. Although the core idea might be somewhat entertaining, especially level 2 showed some potential of being a good start for a bigger thing. (changing steps into flat surface).
If I can suggest something for next time:
- including sound, in any form is usually crucial for a game.
- In-game explanation of what is going on and how the game works is mostly a big plus
- You've picked a pretty tough idea to comunicate to the player as it is both abstract and unusual while being about objects that we know from every day life. In such case it is good to rely on, subvert or just be aware of what some people call "affordances", so it would be a good thing to consider next time.
Nevertheless, good job on creating the game and submiting. Hope my feedback can help for the future. Good luck this jam, Decimate 2, and in any future projects.