Tap a rock hold to climb to it. Holds with a ring are in reach. A warning marker flashes before each stone falls, so climb sideways out of its path. Points come from height only, and if you stop climbing the stones come for you. Every 200 metres you reach a base camp: cash out to bank your points and post them to the world leaderboard, or climb on for a bigger multiplier and risk losing it all. Keys: Space/Enter start, C cash out, B climb on, L leaderboard, P profile, M music.