Inio Asano said this quote
“ Uncle Yuichi: Something's moving up there? Hmm... I don't see anything. It was probably a satelite. Punpun (with gums flapping): Could I have discovered a new planet?!(long pause) Yuichi: Yes! This could be a great discovery! If it really is a new planet... It'll be called Planet PunPun! Punpun (slobbering again): Do you think I'll win the Nobel Prise?! Yuichi: You sure are a greedy kid. ”