Ice Breaker

You control a little character who runs automatically from left to right. Your only input is clicking the mouse to break through ice walls that appear in your path. The challenge is entirely in the timing. Click too early or too late, and you crash into the wall, which sends you back to the start of that section. The screen shows a counter for how many walls remain in the level. The pacing is quick and the difficulty comes from learning the rhythm of each new wall pattern. It feels like a test of pure reaction and memorization.