Tap anywhere to jump. Swipe ← → to change lane, ↑ to jump, ↓ to roll. Double-tap for an extended jump; tap ⚡ for a burst. Run through a gate and the world changes its mind.
ADD TO HOME SCREEN
Tap Share in the browser bar
Choose Add to Home Screen (scroll down if you don't see it)
Leave Open as Web App on, if it's there, then tap Add