Nice game with a fun characters. The difficulty curve isn't too good though. The first 4 levels are basically just free wins to teach the mechanics, which is fine, but then you have a whole puzzle level with red and blue squares, and a zone that only accepts certain characters, none of which has been explained before. I didn't realize you can actually place the characters on the bigger characters and ended up using what I'm pretty sure was a glitch to complete the level. It's an interesting mechanic for sure, but I think just a couple mechanics all explained in different levels would be better. For example, I don't think I needed the tutorial level on how slopes and bounce pads work, as they're pretty self explanatory, but I think a level with just the big characters where you can learn that you can only place certain characters on them would be helpful, and maybe you could add in some sort of line between the red and blue squares that disappear to signify that doing something with one might do something with the other. Overall, pretty fun concept, but just needs a lot of reworking with the levels.
Edit:
I forgot to mention, the story was pretty cool. I think it was a nice way to blend the "no art" and "make a story" themes for this round.