Lost Impact is a stage in the game Shadow the Hedgehog. It is set aboard the Space Colony ARK and can be reached by completing the Hero mission of Mad Matrix or the Hero mission of Death Ruins. The stage is set in Shadow's memories as an extended flashback after Artificial Chaos experiments have begun to attack the colony. Maria Robotnik has begged Shadow to help, leaving Shadow with two options to choose from. Lost Impact is one of the five fifth stages.