Vegeta mentions that for the next battle between him and Goku, they are going to need a whole planet to fight on. This foreshadows the events of the Baby Saga in Dragon Ball GT: Doragon bôru jîtî
(1996), where Goku and Vegeta actually fought each other on Planet Tuffle. See more
Hey, Vegeta! Sorry to disappoint you. I was really looking forward to one more bout with the prince of all Saiyans.
Heh. Don't worry about it. We couldn't play. Not here. When we fight, we'll need a whole planet for an arena.
You're too much. Bye, my friend!