Speaks for itself really... Anyone who can kick down the walls of their own dojo can't be anything less than awesome, right?
PaRappa is still one of my favourite games for the PlayStation (I should still have it hidden away somewhere).
Anyone who played the first game (or even just the demo of it) probably remembers the first song and Chop Chop Master Onion best. A lot of fun was had in the Fruits Dojo.