The Mario's Early Years! games were released for the Super Nintendo Entertainment System. Preschool Fun (known in the United Kingdom as Mario's Playschool). The games was released in November of 1994, and support the SNES Mouse peripheral. Preschool Fun was directed by Peter Lipson. While the games feature some remixes of Super Mario World music, original music was composed by Rob Wallace and Sam Powell. Nintendo Power awarded Preschool Fun a score of 2.725 out of 5.