These racers are not friendly. In fact they are down right rude and will try and club you every chance they get to prevent you from winning. Beat (literally) the other players to the finish line and complete each race's objectives to earn money to use for upgrades. Lots of races and objectives to complete.
Read each level's objectives and try to win the race while also completing each objective. Keyboard Controls - A & D or left and right arrow keys to move your racer left and right. Spacebar to spin racer. C key to use Health power-up when available and X key to use Speed Up power-up when available. Touch Controls - touch to move & double tap to spin racer. Touch Health & Speed Up power-ups buttons to use when available.