Yume Kōjō: Doki Doki Panic

Doki Doki Panic is a Japan-only NES game made by Nintendo for the Famicom Disk System. This game was the basis for Super Mario Bros. 2 outside of Japan, and was worked on by Shigeru Miyamoto more than Super Mario Bros. 2. Its enemies, however, are still considered to be Mario enemies. It featured "Mama", "Papa", "Imajin", and "Lina" as the main characters.

Characters (And Their English Counterparts)

 * Mama - Luigi
 * Papa - Toad
 * Lina - Princess Toadstool
 * Imajin - Mario