Aggressive skating

360px|thumbnail|right|Vert ramp with vert, transition, and flat A half-pipe is a structure used in gravity extreme sports such as skateboarding, snowboarding, skiing, freestyle BMX, skating, and scooter riding.

two-wheeled, human-powered land vehicle

form of inline skating that focuses on doing tricks

Freeskates is a type of sports equipment made of two separate metal or wooden decks with two polyurethane in-line wheels attached to the underside by a pair of angled trucks. It is referred to as freeskating, freeline skating, or drift skating.

skating that involves performing tricks around a straight line of cones

2002 video game

thumb|Side view of a snowpipethumb|Front view of a Snowpipe