Titan, Io, Ganymede, and Little Bang are aliens who come down to finish some business with Giga-Robo. However, Giga-Robo is not functional, and the earth air is making the aliens sick. They rely on Chibi-Robo to make everything right. These four aliens look remarkably like Chibi-Robo himself and speak so softly they cannot be heard without an alien ear chip.
- Aliens' Locations.
- In the Backyard, on the circle of dirt just outside the door.