A grid of colored tiles keeps falling. The badge at the top of the screen shows the target color — tap any tile of that color to score. The target color changes every few seconds, so keep watching it.
Your score drains continuously, so you have to keep landing hits to stay ahead. Chaining taps quickly builds a combo multiplier that makes each hit worth more — but the very first tap of a fresh combo is worth nothing, so keep the streak alive.
Tapping the wrong colorbreaks your combo and costs you a life (or 5 seconds, in Timed mode). Run out of lives — or time — and it's game over.
Earn taps every game to spend in the Store on Push, Slow, and Immune ammo you can trigger manually mid-run.