This was really unique! Its not your normal platformer, or bullet hell. I think taking a concept like colors, and creating a game around it is super creative! Everything was spicy and fun, the sound effect for the water boiling is brilliant.
However. I feel like sometimes it VERY hard to get an appropriate color. Multiple times I had to just add a bit of blue, and if you have multiple of these colors that are just slightly of, it gest unreasonably challenging.
Apart from all of that. Everything else was amazingly done. The visuals were vibrant and amazing, that sound, and the gameplay. Really well done. Congrats! :)