It’s nice to see the game running on Android. I was a little bit confused at first, but once I understood the mechanic, it was so much easier. However, I can see some things that you could improve further. The character changes colors out of nowhere, which could mean a surprising game over. (Not the funniest kind Of game overs). You could let the player know using, for example, some sound effects prior to changing colors so that they’re more likely to react to the new color quickly.
Also, one nitpicky thing, the game requires the screen to be in portrait, so make sure to lock it in that orientation. Right now, it automatically rotates depending on the device’s orientation, which results in the game not being playable when on landscape.
Overall, good job!