I'm having a hard time figuring out what's going on when I play the game. I discovered quite quickly that you're recursing when you're pressing the big bubbly buttons, but I don't know how/when the bubble turn yellow. Also, I don't know what it means when the screen starts shaking. Is that good? Are you sometimes supposed to recurse outwards to do something there or should you always stay wherever the game brings you?
After ~10 minutes of gameplay and a score of ~25K, I kinda gave up, started spamming, let some bubbles pop and eventually lost. Ironically, making the game more difficult could help with understanding what you're supposed to do.
The game looks very neat and polished nonetheless, and it it fits the theme well. The recursion concept is shown very clearly and it makes for an interesting game concept.