You're forgeted.
-snip-
I nostalgia'd all over the floor
forget yeah, pingu.that show I always watched when I was five.I've had to estimate through a dozen languages they may be speaking, although I can't take the answer that they're speaking some dormant language, or simply just gibberish.
All dialogue is in a loud honking "penguin language", and was initially retroscripted by Carlo Bonomi, who also did all the other sound effects. This allows people of different linguistic backgrounds to still be able to follow the story.