RF Wally Darling was a fairly well-known scientist but he ended up in this reality with a small puppet that was just like him, they were the same but of different dimensions, Wally was very small, he was 12 blocks tall and was on RF's back Wally

RF Wally: If you don't get off, I'll get off.

Wally: please don't be bitter sticks a star sticker on his cheek take positive vibes

that made RF give the little puppet wally a tremendous blow