The concept here is great, I like the idea of collecting different allies that have different specialties so you can become stronger. I like the character design, as each one seems to have a different personality just from design alone. The artwork is great, but the music gets a little repetitive. I also really like that you can choose whichever stage to go to, and if you're feeling brave, you can go straight to the boss without any friends.
My biggest issue with this game is the controls. It's really hard to kill enemies with just oatmeal because you need to awkwardly rotate in order to face enemies. The best strategy ends up being to run away to get the enemies stuck on walls then return to kill them. It would also be a good idea to include a way to return to the main menu after starting a stage. I collected the water friend and selected the water stage by accident when i should have went to the fire, as water would have been put to better use there.