Line Rider 2: Unbound

Boy grabs sled. Boy rides sled. A simple concept yields endless fun and
the latest Internet Phenomenon is born! In Line Rider the player draws
their own landscape with a simple pencil tool creating as many ramps,
hills, and jumps as they can imagine. Then they send a virtual sledder
careening down the course until he wipes out. The possibilities in Line
Rider are only limited by the player's imagination.