This episode is similar to the final episode of Ben 10: Ultimate Alien where both Ben and Rex were granted unlimited power to alter the universe.
The final scene in which Rex jumps out of the Keep to fight the robot mimics the first scene from "The Day That Everything Changed", the difference being that instead of fighting the Multi-faced EVO Rex is fighting a robot.
Bobo still appears to have human intelligence after Rex cured all EVOs; however, it was stated in earlier episodes that the only reason he had this intelligence was because he was an EVO.