Super Mario World
Accurately capturing the sprites of "Super Mario World" was difficult for the "Wacky Worlds" development team, since the CD-i had a different sprite-making style than that of the SNES. To create their characters, they copied sprites of Mario and several Koopa Troopas from "Super Mario World". Their original designs include a Greek Koopa, knight Koopa, eskimo Koopa, vampire Koopa, and a walrus. The backgrounds were all hand-drawn, based on real-world locations.