Wai Wai World is a strange Konami game that mixes together components like characters, enemies, levels, and theme songs from many of Konami's previous games, such as Castlevania, Goonies and Twin Bees.

Note: The vertically scrolling level has some anomaly in scrolling if watched with old versions of FCEU. Versions of FCEU from 0.98.13 onward should display this stage correctly.