I say, old chap, top of the morning to ya! Shall we start the day off by partaking in the most invigorating match of Puyo Battling, and then a spot of tea in between. Just the very thought of it is simply *SMASHING!!* ......I'll see myself out now...
I like to imagine Carbuncle's thoughts are, like, super posh and refined like that, but when he actually speaks, only Arle (and apparently O from Puyo Puyo Tetris) can understand him and all everyone else can hear from him is "gu." That said, I can only wonder what he's thinking throughout the course of certain games.