About Powder Rush

Carve down a wild mountain at breakneck speed, dodge trees and crevasses, and snag stars before the clock runs out.

On a computer: Left/Right or A/D to steer, Space to jump, Down to tuck and speed up
On a phone: Drag or tilt left and right to steer, tap to jump, hold to tuck

Gabriel described this game in a sentence on OhMyGames and the AI built it. You can make your own the same way, free to start.