Instructions

Race your rocketship around the track, and try to beat your opponents.
If you fly under the light-blue square thing, you will pick up a missile which can temporarily stun them.

Beat the cups too easily? Try and get a leading time on the global timetrial leaderboards.
Controls

Controls can be re-defined, but the defaults are:

rotate anticlockwise - Left arrow
rotate clockwise - Right arrow
thrust - Up arrow
fire missile - Space
skip menu to 'rocket option' - Enter