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Potty Racers 1

Get on the wheels and ride/drive, and try to travel as much distance as possible. Then you can upgrade the wheels and travel even longer. However, if you are stuck at some pointe, you can play Potty Racers Hacked game that will give access to all the power-ups and upgrades for free.

Related; Potty Racers 3  |  Potty Racers 2