This was fun. I have played something similar before and I do enjoy these types of games.
One small suggestion: it felt a bit frustrating that I could not change colour again after switching once mid jump. I might have misunderstood the intent, but it did not feel like a necessary restriction from my perspective, and it sometimes broke the flow.
The sounds and music are good and fit the game, though they felt slightly over-tuned at times. Dialing them back just a touch might help everything breathe a bit more.
I also see the design instinct behind having a clear fail state, which I appreciate. That said, it occasionally felt a bit too punishing. Memory based games are already competing for a player’s attention, and a little more forgiveness can go a long way in keeping people engaged and motivated to try again.
Overall though, I had a good time with it and I think with a few small tweaks it could feel even better.