Really fun. The core mechanic is simple but you managed to make the puzzles interesting. Typically in this type of game the two characters don't collide with each other but you made that the central part of your mechanic. The headbump mechanic was pretty funny.
At first, I thought that only the colored part of the platform was solid enough to stand on. The sphereish coloring effect is cool but I think it'd be better to amke solid platforms fully colored and make the sphere of influence for each character svisible but opaque.
The controls are a bit janky but this is a jam game after all.
The graphics are fine I think. I think it would be better to make the platforms that both of them can stand on completely purple. It would fit better that way.
I think the soundtrack in the first two levels is the best one. I think you could've used it in all of the levels(except the chasing ones) and it would fit. The other tracks are pretty good. Overall, good music selection.
As for the chase sequences, I liked them. I realized that it was far easier to make moth of them jump than to make the one with the matching color go first and then the other. I also really like how you had to "headbump multiple times to pass the final block". It was frustrating but made the ending more worthwhile.
The only problem I have is that the game doesn't have any connection to the theme. But great job nonetheles.