In a secluded part of space, there is a floating station that is simply known as "The Cage". It's really nothing more than a large battle ring with an even larger bubble around it protecting the crowds in the statium from stray ki blasts. This is where many different interglobal battles are held for crowd enjoyment, but more specifically, the infamous "Children fighting". It's an illegal sport yes, where kids of all ages and races are started early in the art of killing and battle. Sometimes...many times...killing indeed, is involved. It's unfourtionate what lengths people will go for money.