(having just regenerated an arm) Perhaps I should have explained earlier? My body is constantly monitored by the Big Gette Star's main computer. Any injury I might suffer is instantly detected and repaired - and whatever flaws in my design that allowed the injury are corrected. It's quite remarkable, really. In simple terms, of course, this means you can't win. Goku:
(grimly) I'll just have to try harder. Cooler:
By all means, try.
Uh-uh-uh! Can't beat me the same way twice.
"That which does not kill me can only make me stronger.