OlliOlli 2 is a skateboarding game in which you, a skateboarder, must skateboard from one end of the level to the other, skateboarding up ramps, skateboarding along rails, and skateboarding over spikes, until you've skateboarded all the skateboarding you can feasibly skateboard.
It's a trickshot-addled, combo-stringing, quick-restarting, score-based platformer. Part Trials, part Joe Danger, part Tony Hawk. It's highly addictive, brutally challenging and, once you begin to get the hang of it, tremendously satisfying to play.
The game has a robust control scheme, with you moving the left thumbstick to initiate one of a giant catalogue of jumps, and then hitting A a fraction of a second before hitting the ground to properly land the trick. You jump, you land, you maintain momentum. Sloppy landings slow you down, break your combo and stumble your skater.