Vectorman

The year is 2049. The Earth has become so polluted that humans have been forced to flee the planet. But all is not lost. Automated robots called "orbots" have been left behind to clean up humanity's mess, and the job is nearly complete. But a rogue orbot by the name of WarHead has risen to power, and he wants to prepare a special surprise for the humans upon their return: total annihilation. You are humanity's only hope for survival.