Net Jet Booster Key - Kool Kart Racers Unlock four exciting games in your own online arcade with this PC online game key! Unlock the KOOL KART RACERS game directly with this key and choose three more games form the online game arcade! Use your skill and avoid the spills as your virtual opponents chase you down Steer left and avoid the bombs, then bang a right and score more if you drive over the powerups! Hold your line and finish first!