EarthSpark introduces a new generation of Transformers robots, the first Transformers bots born on Earth. The EarthSpark Spin Changer figures feature popular characters as they appear in the animated TV series Transformers, EarthSpark. Transform the Optimus Prime toy from vehicle mode to robot mode in 3 manual steps and then attach the human figure Robby Malto to the robot's shoulder to activate the rest of the transformation!