A challenging dirt bike game, try to complete the 7 tracks as quickly as you can. Your goal is to reach the finish as quickly as you possibly can. When the hills get steep, try to lean back or forward so you do not turn over. If you fall you have to start the level from the beginning again, but the timer keeps ticking towards zero. You can still finish the level when the time runs out, that just means you do not score any points that level. barbie games.