Yume Kōjō: Doki Doki Panic
Yume Kōjō: Doki Doki Panic (translated as "Dream Factory: Heart-Pounding Panic") is a Japan-only video game developed by Nintendo in cooperation with Fuji Television for the Family Computer Disk System to promote its event called Yume Kojō '87 (translates to Dream Factory '87).
It was later released outside of Japan in an altered format under the name Super Mario Bros. 2, since the original Japanese Super Mario Bros. sequel, Super Mario Bros.: The Lost Levels, was deemed too similar to the original and too difficult for overseas players. Eventually, the altered Mario version of Doki Doki Panic was released in Japan as well, under the title Super Mario USA.
Impact on the Mario Series
The Doki Doki Panic engine started as a Mario-style tech demo using vertical-scrolling mechanics as opposed to side-scrolling mechanics. Shigeru Miyamoto suggested the inclusion of side-scrolling mechanics to make it more of a Mario concept. Nintendo entered a licensing deal with Fuji Television, and the game's development proceeded with Yume Kōjō characters. Shigeru Miyamoto as a result was more involved with the development of Doki Doki Panic than he was in what eventually became the original Super Mario Bros. 2. Many of the game's enemies have become generic Mario enemies, though many were not intended to be that at the time of their creation. This includes Shy Guys, Birdos, Pokeys, Bob-ombs, and numerous others. Of particular note is how Mario, Luigi, Toad, and Princess Toadstool's skills and attacks have been shaped by the skills of the characters they replaced.
Some Mario elements had already been in place prior to the overhaul for America - both POW Blocks (from Mario Bros.) and Starmen (from Super Mario Bros.) are frequent and powerful items that serve the same purposes as in their games of origin.
Differences between games
Several changes were made in order to make the game appropriate for the Mario series. Graphical changes were made for certain enemies and characters. Additionally, the cream white Mouser boss was replaced with Clawgrip. This change was in tune with the decision to release the edited Doki Doki Panic in place of the Japanese Super Mario Bros. 2, which Nintendo of Japan feared was too hard for European and American gamers.
Characters (and their Mario counterparts)
References in later games
Names in other languages