Hyperbolic Time Chamber

Bio
This chamber was used when Dr. Gero wanted to turn Goku into a full grown man. It makes people older by letting them go in there, messing with some buttons, and they come out and they are older. In book one, Dr. Gero made Goku older in the chamber. He was later upset when Goku was so strong, he broke the chamber.

Appearances

 * A Journey is Hard