Arc 78King Piccolo and the Time Chamber
He-El trained at Kami’s Lookout, prepared Earth for the threat posed by his evil duplicate, and turned King Piccolo’s release into practical training for Goku and the others. He left Piccolo Jr. in training, rebuilt the Hyperbolic Time Chamber, and prepared for the approaching Twenty-Second World Martial Arts Tournament.
- He-El brought Goku to Kami’s Lookout, defeated Mr. Popo, won Kami’s trust, and entered the Hyperbolic Time Chamber to train against the coming threat.
- He-El’s uncontrolled Ki shook Earth, so he stabilized the damage and worked with Korin, Bulma, and Dr. Briefs to restore Korin Tower and increase Senzu Bean production.
- After Kami sensed King Piccolo’s release, He-El took Goku, Yamcha, and Krillin to confront him and had the group fight as practical training.
- King Piccolo defeated Yamcha and Krillin before Goku fought him, and He-El restored King Piccolo’s youth with the Dragon Balls so the fighters could challenge him again.
- He-El subdued King Piccolo and forced him to produce an egg before he died, then persuaded Kami to let Piccolo Jr. hatch and train alongside Goku and the others.
- He-El had Kami provide the Hyperbolic Time Chamber blueprints, then rebuilt the chamber with Bulma and Dr. Briefs to remove its time limit and add adjustable gravity and outside communication.
- He-El trained in the modified chamber, developed 50,000 Energy Capsules with Bulma after exhausting his Senzu Beans, and agreed to join the group’s trip to the tournament at Papaya Island.