The very first room of Peanut Plains in Kirby Super Star is an indirect reference to Super Mario Bros. 2. Kirby starts in midair and falls down as he gets below several blocky hills that are in a similar arrangement to the ones in the very first room of Super Mario Bros. 2. To add to that, the door is at the right and the lone Sir Kibble found in the area is very close, if not directly on, the spot where one of the first Shy Guys in Super Mario Bros. 2 is found. In Kirby Super Star, the grass is pinkish, but in Kirby Super Star Ultra, the grass is green, further increasing the similarity.