The art was quite detailed and nice, and reminded of a game-boy advanced game. The level design, too, was a lot of fun, however I wish that the blue guy's moveset could be used outside of their introductory areas, as this would've made for an even better experience on top of what was already a fun game. Similarly, this not being mentioned anywhere did cause a couple of deaths and frustration, as I assumed the game was bugging out. Likewise, not being able to see what was in the next room (due to some of the parts where you'd need to jump down) did cause a bit of frustration, but that's probably more of a skill issue on my end.
Overall, really fun and aesthetically pleasing game! If you do make a full version, you should definitely try having the full moveset be useable at some point, and mention where players don't have a specific ability. Good luck!