Tap Ballz is an awesome free game made in C2. The balls keeps falling and you must tap the right color, if you tap the wrong ball or let it fall you lose time, and you lose.
The game gets harder and harder, coming more colors, special balls, and it gets faster.
The graphics are very minimalistic and the game too.
The game is very fun so you should have a try, please if you have some suggestions comment and rate.