Well, maybe because it wasn't my first time trying it, I understand what I have to do. So here I go :
Negative points :
Too much text in my opinions...And you can't pass them when you play again!
I believe that the IA is a quite a difficulte thing to do : In my test, whenever I hit the B button, it always respond with the D color.A little frustration
I can't see exactly if I really win agains my opponent. In facts, at the end of the game, I don't feel as I have achieved to win the game. It's maybe what you wanted ?
Positive points :
Simple control : Click!
I like the idea of the world goes tinier and tinier!(is it really related to what I'm doing ? :) )
I enjoy the sound, very soft music and trashy sound for the particules, remember me the gameboy sound.
I find the "graphics" well adapted for the game
Last point : I enjoyed it anyway!
Good work and response at the theme!