History VideoGame / DokiDokiPanic

After being made into a ''Mario'' title, it was marketed in the North American and PAL release as "''VideoGame/SuperMarioBros2''". This was done because the original ''Super Mario Bros. 2'', now known outside of Japan as ''VideoGame/SuperMarioBrosTheLostLevels'', was deemed [[ItsHardSoItSucks too hard]] for American gamers, and [[ItsTheSameNowItSucks too similar]].

'''''Yume Kōjō: Doki Doki Panic''''' (literally ''"Dream Factory: Heart-Pounding Panic"'') is a platform game made by Creator/ShigeruMiyamoto in 1987 for the [[UsefulNotes/NintendoEntertainmentSystem Family Computer Disk System]]. It started development as ''Mario''-style tech demo by Miyamoto and company, and was [[DolledUpInstallment dolled-up]] as ''VideoGame/SuperMarioBros2'' after its initial release.

** It's possible that these items were leftover from when ''Doki Doki Panic'' was still a ''Mario'' prototype.

'''''Yume Kōjō: Doki Doki Panic''''' (literally ''"Dream Factory: Heart-Pounding Panic"'') is a platform game made by Creator/ShigeruMiyamoto in 1987 for the [[UsefulNotes/NintendoEntertainmentSystem Family Computer Disk System]]. It started development as ''Mario''-style tech demo by Miyamoto and company, and was remade as ''VideoGame/SuperMarioBros2'' after its initial release.

After being remade into a ''Mario'' title, [[DolledUpInstallment it was marketed in the North American and PAL release as]] "''VideoGame/SuperMarioBros2''". This was done because the original ''Super Mario Bros. 2'', now known outside of Japan as ''VideoGame/SuperMarioBrosTheLostLevels'', was deemed [[ItsHardSoItSucks too hard]] for American gamers, and [[ItsTheSameNowItSucks too much of a clone]].

* The B button cannot be held to run; the only way to move faster is to have Papa carry an enemy.

* [[FakeLongevity The game had to be completed with all four characters in order to see the true ending.]][[note]]Which, intentionally or not, was given a CallBack of sorts in ''VideoGame/SuperMario3DWorld'' where every stage (except the Captain Toad stages) had to be completed with every character (including a certain secret character) in order to get all five profile stars, and ultimately, all of the Miiverse stamps.[[/note]]

* BadassFamily: Imajin's family, of course.

* ShoutOut: Before it became a ''[[VideoGame/SuperMarioBros2 Mario]]'' game, it already had the POW block from the original ''VideoGame/MarioBros'', plus the star from ''VideoGame/SuperMarioBros''[[note]]Contrary to popular belief, "Coins" were known as "Medals" in ''DDP'', making it a deliberate change in ''[=SMB2=]''. [[/note]] The electric Sparks may also be a reference to the enemy of the same name from ''VideoGame/DonkeyKong Junior.''

Quite a few enemies from this game went on to be integrated into later ''Mario'' games and the wider franchise. In fact, Bob-Oombs would appear in ''VideoGame/SuperMarioBros3'' and go on to become a series staple. Pokeys and Ponkeys ([[DubNameChange Pansers/Volcano Plants]]) would appear in ''VideoGame/SuperMarioWorld'' (albeit with changed appearances), as well as Ninjis. Shy Guys, Snifits and souped-up Porcupos (known as Harry Hedgehogs) would appear in ''VideoGame/YoshisIsland'', which chronologically takes place at the beginning of the ''Mario'' series, and also made regular appearances in the ''Super Mario Bros.'' installments of the ComicBook/NintendoComicsSystem before that. Birdo would reappear in ''Wario's Woods'' and has appeared in practically every ''Mario'' sports title since the N64 version of ''Mario Tennis'' in 2000. Also, as late as ''VideoGame/SuperSmashBrosBrawl'', Princess Peach uses many abilities from this game, and this game is the TropeCodifier for Luigi's signature high jump and low traction (even though he had these things in ''The Lost Levels''), as well as Peach's ability to "float-jump", which returned for ''VideoGame/SuperPrincessPeach'' and ''VideoGame/SuperMario3DWorld'', ''and'' Toad's "short jumps, incredible run-speed, massive throws" playstyle (natch, ''[=SM3DW=]'').

After being remade into a ''Mario'' title, [[DolledUpInstallment it was marketed in the North American and PAL release as]] "''VideoGame/SuperMarioBros2''". This was done because the original ''Super Mario Bros. 2'', now known outside of Japan as ''VideoGame/SuperMarioBrosTheLostLevels'', was either deemed [[ItsHardSoItSucks too hard]] for American gamers, or [[ItsTheSameNowItSucks too much of a clone]].

* The title screen and ending[[spoiler:s]] are different in ''DDP''. It was remixed into the ''[=SMB2=]'' cast roll.

Quite a few enemies from this game went on to be integrated into later ''Mario'' games and the wider franchise. In fact, Bob-Oombs would appear in ''VideoGame/SuperMarioBros3'' and go on to become a series staple. Pokeys and Ponkeys ([[DubNameChange Pansers/Volcano Plants]]) would appear in ''VideoGame/SuperMarioWorld'' (albeit with changed appearances), as well as Ninjis. Shy Guys, Snifits and souped-up Porcupos (known as Harry Hedgehogs) would appear in ''VideoGame/YoshisIsland'', which chronologically takes place at the beginning of the ''Mario'' series, and also made regular appearances in the ''Super Mario Bros.'' installments of the ComicBook/NintendoComicsSystem before that. Birdo would reappear in ''Wario's Woods'''' and has appeared in practically every ''Mario'' sports title since the N64 version of ''Mario Tennis'' in 2000. Also, as late as ''VideoGame/SuperSmashBrosBrawl'', Princess Peach uses many abilities from this game, and this game is the TropeCodifier for Luigi's signature high jump and low traction (even though he had these things in ''The Lost Levels''), as well as Peach's ability to "float-jump", which returned for ''VideoGame/SuperPrincessPeach'' and ''VideoGame/SuperMario3DWorld'', ''and'' Toad's "short jumps, incredible run-speed, massive throws" playstyle (natch, ''[=SM3DW=]'').

After being remade into a Mario title, [[DolledUpInstallment It was marketed in the PAL and North American release as "Super Mario Bros. 2"]]. This was done because Japan's [=SMB2=], now known outside of Japan as ''[[VideoGame/SuperMarioBrosTheLostLevels Super Mario Bros.: The Lost Levels]]'', was either deemed [[ItsHardSoItSucks too hard]] for non-Japanese gamers, or [[ItsTheSameNowItSucks too much of a clone]].

Quite a few enemies from this game went on to be integrated into later Mario games and the wider franchise. In fact, Bob-Ombs would appear in [[VideoGame/SuperMarioBros3 the very next game]] and go on to become a series staple. Pokeys would appear in ''VideoGame/SuperMarioWorld'', albeit with a changed appearance. Shy Guys would appear in ''VideoGame/YoshisIsland'', which chronologically takes place at the beginning of the ''Mario'' series, and also made regular appearances in the ''Super Mario Bros.'' installments of the ComicBook/NintendoComicsSystem before that. Birdo would reappear in a ''Wario'' game and has appeared in practically every Mario sports title since the N64 version of ''Mario Tennis'' in 2000. Also, as late as ''VideoGame/SuperSmashBrosBrawl'', Princess Peach uses many abilities from this game, and this game is the TropeCodifier for Luigi's signature high jump and low traction (even though he had these things in ''The Lost Levels''), as well as Peach's ability to "float-jump", which returned for ''VideoGame/SuperPrincessPeach'' and ''VideoGame/SuperMario3DWorld'', ''and'' Toad's "short jumps, incredible run-speed, massive throws" playstyle (natch, ''[=SM3DW=]'').

* Overall, the game had an Arabian theme, as Imajin and Lina were originally designed with an Arabian "1001 Nights"-esque theming for the event (i.e., lots of dreams, lot of stories for Fuji TV to share, etc.) This still remains in [=SMB2=] to a slightly lesser extent.

* The worlds were called "chapters". This explains why the last world is missing a stage -- it's actually a missing page from the final chapter, [[AllThereInTheManual which was ripped when the twins fought over the book and accidentally removed the ending.]]

* The Magic Potion in [=SMB2=] was originally a Magic Lamp; both produce a door to Subspace.
* The Mushroom that grants you an extra hit point was originally a Heart.
* Very few sprites in this game (including, but not limited to, the cherries and POW blocks) are animated compared to those in [=SMB2=], and even those that were didn't have as many frames of animation as the American version (for example, Albatoss only has a two-frame "flap" in DDP).

* The tufts of grass were black. They're red in [=SMB2=], but when you pull out a vegetable, it still has black leaves in the original NES.

* The Turtle Shell was originally "Big Face", which appears to be a blackface head.
* Masks exist in place of the [=SMB2=] Mushroom Blocks.
* Bombs that went off went "BOM"[[note]]A typical comic book sound effect that appears in Japanese manga when there's an explosion[[/note]] instead of "BOMB" like in [=SMB2=].
* The 1-UP items you can dig up represented the head of the character. Additionally, while [=SMB2=] uses (some form of) the 1-UP jingle, this game uses the same one that plays when you pick up the Crystal Ball that opens the door, or when you get an extra life in the slot game.
* The mask gates that represent the level goal were tribal masks compared to the hawk heads in [=SMB2=].
* Phanto's sprite wasn't the NightmareFace it was given in [=SMB2=]: instead of a SlasherSmile, it had a very solemn open-mouthed expression.

* Being on the Family Computer Disk System, the DDP sound effects are generally more detailed than [=SMB2=].
* The character selection track has an extended second half in [=SMB2=].
* Subspace plays an Arabian-esque theme instead of the iconic ''Super Mario Bros.'' theme. Picking up a Star also plays an Arabian theme.
* At least two level themes were altered in [=SMB2=]; the "overworld" theme has an additional section not found in DDP, and the "underworld" theme was slowed slightly and given an additional "drum" part in [=SMB2=].
* The title screen and ending[[spoiler:s]] are different in DDP. It was remixed into the [=SMB2=] cast roll.

* You can save in DDP.[[note]]Almost a given since it's a Family Computer Disk System game.[[/note]]

* Getting down to 1 HP doesn't shrink you like in [=SMB2=].

* Chapter 5-3 in this game features a third Mouser encounter.[[note]]Who was white and moved more erratically than the previous appearances[[/note]] He was replaced with Clawgrip in [=SMB2=].

* Mamu/Wart has less HP in DDP.

** The reason why the seventh world had only two levels wasn't explained in [=SMB2=], which caused confusion for many people.

* {{Blackface}}: Big Face, which became the Turtle Shell (presumably of a red Koopa Troopa). Apparently intended as a ShrunkenHead.

* ShoutOut: Before it became a ''[[VideoGame/SuperMarioBros2 Mario]]'' game, it already had the POW Block from the original ''VideoGame/MarioBros'', plus the Star from ''VideoGame/SuperMarioBros''[[note]]Contrary to popular belief, the "Coins" were known as "Medals" in DDP, making it a deliberate change in [=SMB2=]. [[/note]] The electric Sparks may also be a reference to the enemy of the same name from ''VideoGame/DonkeyKong Junior.''

Tt was originally a LicensedGame starring the {{Mascot}}s of Fuji Television's Yume Kōjō '87 (Dream Factory '87) event, which promoted several of Fuji Television's shows and other products. (The enemies were owned by Nintendo, which is why they could appear in other titles.)

Made by Creator/ShigeruMiyamoto in 1987 for the [[UsefulNotes/NintendoEntertainmentSystem Family Computer Disk System,]] '''''Yume Kōjō: Doki Doki Panic''''' (or ''"Dream Factory: Heart-Pounding Panic"'') is the game that would later become ''VideoGame/SuperMarioBros2''. Shigeru Miyamoto was involved heavily in the game's development. Interestingly, it was originally a LicensedGame starring the {{Mascot}}s of Fuji Television's Yume Kōjō '87 (Dream Factory '87) event, which promoted several of Fuji Television's shows and other products.[[note]]The enemies were owned by Nintendo, which is why they could appear in other titles.[[/note]] [[DolledUpInstallment It was marketed in the PAL and North American release as "Super Mario Bros. 2"]] because Japan's [=SMB2=], now known as ''[[VideoGame/SuperMarioBrosTheLostLevels Super Mario Bros.: The Lost Levels]]'', was either deemed [[ItsHardSoItSucks too hard]] for non-Japanese gamers, or [[ItsTheSameNowItSucks too much of a clone]].

This put Nintendo of America in a bit of a bind, because they couldn't just sit and wait for Japan to develop another [=SMB2=], especially since by 1988 Nintendo HQ had already released ''VideoGame/SuperMarioBros3'' in Japan. Further helping matters was the Yume Kōjō event itself falling somewhat flat in Japan; it didn't attract a lot of interest and Fuji TV never held another one past its 1987 inauguration, which meant that an otherwise excellent platformer and its characters would be completely orphaned... ''unless'' Nintendo repurposed the game and the assets it did own into another franchise.

In a 2011 interview, Nintendo revealed that although ''Doki Doki Panic'' was released as a non-Mario game, it started development as ''Mario''-style tech demo. by Miyamoto and company. In other words, it turns out ''Doki Doki Panic'' was intended to be a ''Mario'' game all along.

Quite a few enemies from this game went on to be integrated into later Mario games and the wider franchise. In fact, Bob-Ombs would appear in [[VideoGame/SuperMarioBros3 the very next game]] and go on to become a series staple. Pokeys would appear in ''VideoGame/SuperMarioWorld'', albeit with a changed appearance. Shy Guys would appear in ''VideoGame/YoshisIsland'', which chronologically takes place at the beginning of the ''Mario'' series, and also made regular appearances in the ''Super Mario Bros.'' installments of the ComicBook/NintendoComicsSystem before that. Birdo would reappear in a ''Wario'' game and has appeared in practically every Mario sports title since the N64 version of ''Mario Tennis'' in 2000. Also, as late as ''SuperSmashBrosBrawl'', Princess Peach uses many abilities from this game, and this game is the TropeCodifier for Luigi's signature high jump and low traction (even though he had these things in ''The Lost Levels''), as well as Peach's ability to "float-jump", which returned for ''VideoGame/SuperPrincessPeach'' and ''VideoGame/SuperMario3DWorld'', ''and'' Toad's "short jumps, incredible run-speed, massive throws" playstyle (natch, ''[=SM3DW=]'').

Made by Creator/ShigeruMiyamoto in 1987 for the [[{{NES}} Family Computer Disk System]], '''''Yume Kōjō: Doki Doki Panic''''' (or ''"Dream Factory: Heart-Pounding Panic"'') is the game that would later become ''VideoGame/SuperMarioBros2''. Shigeru Miyamoto was involved heavily in the game's development. Interestingly, it was originally a LicensedGame starring the {{Mascot}}s of Fuji Television's Yume Kōjō '87 (Dream Factory '87) event, which promoted several of Fuji Television's shows and other products.[[note]]The enemies were owned by Nintendo, which is why they could appear in other titles.[[/note]] [[DolledUpInstallment It was marketed in the PAL and North American release as "Super Mario Bros. 2"]] because Japan's [=SMB2=], now known as ''[[VideoGame/SuperMarioBrosTheLostLevels Super Mario Bros.: The Lost Levels]]'', was either deemed [[ItsHardSoItSucks too hard]] for non-Japanese gamers, or [[ItsTheSameNowItSucks too much of a clone]].

* ShoutOut: Before it became a ''[[VideoGame/SuperMarioBros2 Mario]]'' game, it already had the POW Block from the original ''VideoGame/MarioBros'', plus the Star from ''VideoGame/SuperMarioBros''[[note]]Contrary to popular belief, the "Coins" were known as "Medals" in DDP, making it a deliberate change in SMB2. [[/note]] The electric Sparks may also be a reference to the enemy of the same name from ''VideoGame/DonkeyKong Junior.''

* ShoutOut: Before it became a ''[[VideoGame/SuperMarioBros2 Mario]]'' game, it already had the POW Block from the original ''VideoGame/MarioBros'', plus the Star from ''VideoGame/SuperMarioBros''[[note]]Contrary to popular belief, the "Coins" were known as "Medals" in DDP, making it a deliberate change in [=SMB2=].[[/note]] The electric Sparks may also be a reference to the enemy of the same name from ''VideoGame/DonkeyKong Junior''.

* [[TrappedInTVLand Trapped In Book Land]]

* At least two level themes were altered in [=SMB2=]. The "overworld" theme has an additional section not found in DDP, and the "underworld" theme was slowed slightly and given an additional "drum" part in [=SMB2=].

* [[FakeLongevity The game had to be completed with all four characters in order to see the ending.]][[note]]Which, intentionally or not, was given a CallBack of sorts in ''VideoGame/SuperMario3DWorld'' where every stage (except the Captain Toad stages) had to be completed with every character (including a certain secret character) in order to get all five profile stars, and ultimately, all of the Miiverse stamps.[[/note]]

* The worlds were called "chapters". This explains why the last world is missing a stage -- it's actually a missing page from the final chapter, [[AllThereInTheManual which was ripped when the twins fought over the book and accidentally deleted the ending.]]

* Being on the Family Computer Disk System, DDP allowed more detailed sounds than [=SMB2=].

* The B button cannot be held to run.
* When you get the key from Phanto's room, he doesn't pursue you until after you leave the room with the key.

* Chapters 7-1 and 7-2 are designed slightly differently.

Made by Creator/ShigeruMiyamoto in 1987 for the [[{{NES}} Famicom Disk System]], '''''Yume Kōjō: Doki Doki Panic''''' (or ''"Dream Factory: Heart-Pounding Panic"'') is the game that would later become ''VideoGame/SuperMarioBros2''. Shigeru Miyamoto was involved heavily in the game's development. Interestingly, it was originaly a LicensedGame starring the {{Mascot}}s of Fuji Television's Yume Kōjō '87 (Dream Factory '87) event, which promoted several of Fuji Television's shows and other products.[[note]]The enemies were owned by Nintendo, which is why they could appear in other titles.[[/note]] [[DolledUpInstallment It was marketed in the PAL and North American release as "Super Mario Bros. 2"]] because Japan's [=SMB2=], now known as ''[[VideoGame/SuperMarioBrosTheLostLevels Super Mario Bros.: The Lost Levels]]'', was either deemed [[ItsHardSoItSucks too hard]] for non-Japanese gamers, or [[ItsTheSameNowItSucks too much of a clone]].

The story starts with two children that were reading a storybook when a hand suddenly grabs them and sucks them inside the book. The family of the twins discovered what happened thanks to the pet monkey and rush inside to save them. Sucked into the world of the storybook, the family has to fight off several monsters across seven chapters: Imajin, [[JackOfAllStats the balanced one]]; Mama, [[InASingleBound a very high jumper]]; Lina, [[ParachutePetticoat who can float for a few seconds]]; and Papa, [[PapaBear who has the strongest throw]].

Quite a few enemies from this game went on to be integrated into later Mario games and the wider franchise. In fact, Bob-Ombs would appear in [[VideoGame/SuperMarioBros3 the very next game]] and go on to become a series staple. Pokeys and Sparks would appear in ''VideoGame/SuperMarioWorld'', albeit with changed appearances (and in the latter's case, a changed name: "L'il Sparky"), and the former would also appear in ''VideoGame/SuperMario64'' and ''VideoGame/SuperMarioSunshine''. Shy Guys would re-appear in ''VideoGame/YoshisIsland'', which takes place BEFORE this game in canon, and also made regular appearances in the Mario installments of the ComicBook/NintendoComicsSystem before that. Birdo would re-appear in a Wario game and has appeared in every Mario sports title since the original N64 version of ''Mario Tennis'' in 2000. Also, as late as ''SuperSmashBrosBrawl'', Princess Peach uses many abilities from this game, and this game is the TropeCodifier for Luigi's signature high jump and low traction (even though he had these things in Lost Levels), as well as Peach's ability to "float-jump", which returned for ''VideoGame/SuperPrincessPeach'' and ''VideoGame/SuperMario3DWorld'', ''and'' Toad's "short jumps, incredible run-speed, massive throws" playstyle (natch, ''[=SM3DW=]'').

In a 2011 interview, Nintendo revealed that although ''Doki Doki Panic'' was released as a non-Mario game, it started development as a prototype sequel to the original ''Super Mario Bros.'' by Miyamoto and company. In other words, it turns out ''Doki Doki Panic'' was intended to be a Mario game all along.

!!Major differences between this game and Super Mario Bros. 2:

* Overall, the game had an Arabian theme, as Imajin and Lina were originally designed with an Arabian "1001 Nights"-esque theming for the event (i.e., lots of dreams, lot of stories for Fuji TV to share, etc.)

* The worlds were called "chapters".
* The potion in [=SMB2=] was originally a golden lamp; both produce a door to Subspace.
* The mushroom that grants you an extra hit point was originally a heart.
* Very few sprites in this game (including, but not limited to, the cherries and POW blocks) are animated compared to those in [=SMB2=], and even those that were didn't have as many frames of animation as the American version (for example, Albatoss only has a two-frame "flap" in DDP.)

* The Koopa shell was originally a blackface head.
* Instead of mushroom blocks like in [=SMB2=], you throw masks at later Birdos.

* The 1-UP items you can dig up represented the head of the character. Additionally, while [=SMB2=] uses (some form of) the 1-UP jingle, this game uses the same one that plays when you pick up the crystal that opens the door, or when you get an extra life in the slot game.
* The heads that represent the level goal were tribal masks compared to the hawk heads in [=SMB2=].

* Being on the Famicom Disk System, DDP allowed more detailed sounds than [=SMB2=].
* Subspace plays an Arabian-esque theme instead of the iconic Super Mario Bros. theme. Picking up a star also plays an Arabian theme.

* You can save in DDP.[[note]]A given, since it's a Famicom Disk System game.[[/note]]

* You can't hold down the B button to run.

* World 5-3 in this game features a third Mouser.[[note]]Who was white and moved more erratically than the previous two Mousers[[/note]] He was replaced with Clawgrip in [=SMB2=].
* Worlds 7-1 and 7-2 are designed slightly differently.
* Wart has less HP in DDP.
* [[FakeLongevity The game had to be completed with all 4 characters in order to see the ending.]][[note]]Which, intentionally or not, was given a CallBack of sorts in VideoGame/SuperMario3DWorld where every stage (except the Captain Toad stages) had to be completed with every character (including a certain secret character) in order to get all five profile stars, and ultimately, all of the Miiverse stamps.[[/note]]

* AllThereInTheManual: The dream machine's purpose is only explained in the manual and other supplemental media, which is to provide Subcon with good dreams. Wart (or rather "Mamu", as he's called in Japan - it means Wart, still) used it for nightmares in order to take over the dream world. He was actually defeated before the events of the game, but the two kids that read the book accidentally tore off the page containing the ending, causing [[{{Retcon}} Wart's defeat to have never happened]] and allowing him to capture the children. The torn page is also the reason why World 7 has 2 levels instead of 3 like the rest of the worlds. Players who didn't read the manual (or have it at all) would only know about Wart capturing the two kids.
** The reason why World 7 had only 2 levels wasn't explained in [[DolledUpInstallment Super Mario Bros. 2]], which caused confusion for many people.

* {{Blackface}}: The sprite of what is now the Koopa Shell. Apparently intended as a ShrunkenHead.
* EvilAlbino: There is an albino version of {{M|adBomber}}ouser in Chapter/World 5. When the game was dolled-up as ''VideoGame/SuperMarioBros2'', it was replaced by the GiantEnemyCrab Clawgrip.

* ShoutOut: Before it became a [[VideoGame/SuperMarioBros2 Mario game]], it already had the POW block from the original MarioBros, plus the coins, and Super Star from Franchise/SuperMarioBros.
** It's possible/likely that these items were leftover from when Doki Doki Panic was still a prototype sequel Franchise/{{Super Mario|Bros}} game.

Made by Creator/ShigeruMiyamoto in 1987 for the [[{{NES}} Famicom Disk System]], '''''Yume Kōjō: Doki Doki Panic''''' (or ''"Dream Factory: Heart-Pounding Panic"'') is the game that would later become ''VideoGame/SuperMarioBros2''. Shigeru Miyamoto was involved heavily in the game's development. Interestingly, it was originaly a LicensedGame starring the {{Mascot}}s of Fuji Television's Yume Kōjō '87 (Dream Factory '87) event, which promoted several of Fuji Television's shows and other products.[[note]]The enemies were owned by Nintendo, which is why they could appear in other titles.[[/note]] [[DolledUpInstallment It was marketed in the PAL and North American release as "Super Mario Bros. 2"]] because Japan's [=SMB2=], now known as ''[[VideoGame/SuperMarioBrosTheLostLevels Super Mario Bros.: The Lost Levels]]'', was either deemed [[ItsHardSoItSucks too hard]] for non-Japanese gamers, or [[ItsTheSameNowItSucks too much of a clone]]. Nintendo of America released it because they couldn't just sit and wait for Japan to develop another [=SMB2=], especially since by 1988 Nintendo already released ''VideoGame/SuperMarioBros3'' in Japan. Further helping matters was the Yume Kōjō event itself falling somewhat flat in Japan; it didn't attract a lot of interest and Fuji TV never held another one past its 1987 inauguration, which meant that an otherwise excellent platformer and its characters would be completely orphaned... ''unless'' Nintendo repurposed the game and the assets it did own into another franchise.

* OriginalGeneration: Papa and Mama, really. They only exist in this game - the actual Yume Kōjō material (or what still survives, at least) features Imajin and Lina exclusively.

* Overall, the game had an Arabian theme, as Imajin and Lina were originally designed with an Arabian "1001 Nights"-esque theming for the event.

* Subspace plays an Arabian theme instead of the iconic Super Mario Bros. theme. Picking up a star also plays an Arabian theme.

Made by Creator/ShigeruMiyamoto in 1987 for the [[{{NES}} Famicom Disk System]], '''''Yume Kōjō: Doki Doki Panic''''' (or ''"Dream Factory: Heart-Pounding Panic"'') is the game that would later become ''VideoGame/SuperMarioBros2''. Shigeru Miyamoto was involved heavily in the game's development. Interestingly, it was originaly a LicensedGame starring the {{Mascot}}s of Fuji Television's Yume Kōjō '87 (Dream Factory '87) event, which promoted several of Fuji Television's shows and other products.[[note]]The enemies were owned by Nintendo, which is why they could appear in other titles.[[/note]] [[DolledUpInstallment It was marketed in the PAL and North American release as "Super Mario Bros. 2"]] because Japan's [=SMB2=], now known as ''[[VideoGame/SuperMarioBrosTheLostLevels Super Mario Bros.: The Lost Levels]]'', was either deemed [[ItsHardSoItSucks too hard]] for non-Japanese gamers, or [[ItsTheSameNowItSucks too much of a clone]]. Nintendo of America released it because they couldn't just sit and wait for Japan to develop another [=SMB2=], especially since by 1988 Nintendo already released ''VideoGame/SuperMarioBros3'' in Japan.

Quite a few enemies from this game have gone on to star in future ones. In fact, Bob-Ombs would appear in [[VideoGame/SuperMarioBros3 the very next game]] and go on to become a series staple. Pokeys and Sparks would appear in ''VideoGame/SuperMarioWorld'', albeit with changed appearances (and in the latter's case, a changed name: "L'il Sparky"), and the former would also appear in ''VideoGame/SuperMario64'' and ''VideoGame/SuperMarioSunshine''. Shy Guys would re-appear in ''VideoGame/YoshisIsland'', which takes place BEFORE this game in canon. Birdo would re-appear in a Wario game and has appeared in every Mario sports title since the original N64 version of ''Mario Tennis'' in 2000. Also, as late as ''SuperSmashBrosBrawl'', Princess Peach uses many abilities from this game, and this game is the TropeCodifier for Luigi's signature high jump and low traction (even though he had these things in Lost Levels).

* Overall, the game had an Arabian theme.

* AllThereInTheManual: The dream machine's purpose is only explained in the manual and other supplemental media, which is to provide Subcon with good dreams. Wart (or rather "Mamu", as he's called in Japan - it means Wart, still.) used it for nightmares in order to take over the dream world. He was actually defeated before the events of the game, but the two kids that read the book accidentally tore off the page containing the ending, causing [[{{Retcon}} Wart's defeat to have never happened]] and allowing him to capture the children. The torn page is also the reason why World 7 has 2 levels instead of 3 like the rest of the worlds. Players who didn't read the manual (or have it at all) would only know about Wart capturing the two kids.

* BadassFamily

* ShoutOut: Before it became a [[VideoGame/SuperMarioBros2 Mario game]], it already had the POW block from the original MarioBros, plus the coins, and Super Star from Franchise/SuperMarioBros

Made by Creator/ShigeruMiyamoto in 1987 for the [[{{NES}} Famicom Disk System]], '''''Yume Kojo: Doki Doki Panic''''' (or ''"Dream Factory: Heart-Pounding Panic"'') is the game that would later become ''VideoGame/SuperMarioBros2''. Shigeru Miyamoto was involved heavily in the game's development. Interestingly, it was originaly a LicensedGame starring the {{Mascot}}s of Fuji Television's Yume Kōjō '87 (Dream Factory '87) event, which promoted several of Fuji Television's shows and other products.[[note]]The enemies were owned by Nintendo, which is why they could appear in other titles.[[/note]] [[DolledUpInstallment It was marketed in the PAL and North American release as "Super Mario Bros. 2"]] because Japan's [=SMB2=], now known as ''[[VideoGame/SuperMarioBrosTheLostLevels Super Mario Bros.: The Lost Levels]]'', was either deemed [[ItsHardSoItSucks too hard]] for non-Japanese gamers, or [[ItsTheSameNowItSucks too much of a clone]]. Nintendo of America released it because they couldn't just sit and wait for Japan to develop another [=SMB2=], especially since by 1988 Nintendo already released ''VideoGame/SuperMarioBros3'' in Japan.

In a 2011 interview, Nintendo revealed that although "Doki Doki Panic" was released as a non-Mario game, it started development as a prototype sequel to the original "Super Mario Bros." by Miyamoto and company. In other words, it turns out "Doki Doki Panic" was intended to be a Mario game all along.

* The 1-UP items you can dig up represented the head of the character. Additionally, while [=SMB2=] uses the 1-UP jingle, this game uses the same one that plays when you pick up the crystal that opens the door, or when you get an extra life in the slot game.

* When you get the key from Phanto's room, he doesn't pursue you until after you leave the room with the key. He also doesn't have the NightmareFace that [=SMB2=]'s Phanto has.

In a 2011 interview, Nintendo revealed that although "Doki Doki Panic" was released as a non-Mario game, it started development as a prototype sequel to the original "Super Mario Bros." by Miyamoto and company. In other words, it turns out "Doki Doki Panic" was a Mario game all along.

* You can save in DDP.

Made by ShigeruMiyamoto in 1987 for the [[{{NES}} Famicom Disk System]], '''''Yume Kojo: Doki Doki Panic''''' (or ''"Dream Factory: Heart-Pounding Panic"'') is the game that would later become ''VideoGame/SuperMarioBros2''. Shigeru Miyamoto was involved heavily in the game's development. Interestingly, it was originaly a LicensedGame starring the {{Mascot}}s of Fuji Television's Yume Kōjō '87 (Dream Factory '87) event, which promoted several of Fuji Television's shows and other products.[[note]]The enemies were owned by Nintendo, which is why they could appear in other titles.[[/note]] [[DolledUpInstallment It was marketed in the PAL and North American release as "Super Mario Bros. 2"]] because Japan's [=SMB2=], now known as ''[[VideoGame/SuperMarioBrosTheLostLevels Super Mario Bros.: The Lost Levels]]'', was either deemed [[ItsHardSoItSucks too hard]] for non-Japanese gamers, or [[ItsTheSameNowItSucks too much of a clone]]. Nintendo of America released it because they couldn't just sit and wait for Japan to develop another [=SMB2=], especially since by 1988 Nintendo already released ''VideoGame/SuperMarioBros3'' in Japan.

Made by ShigeruMiyamoto in 1987 for the [[{{NES}} Famicom Disk System]], '''''Yume Kojo: Doki Doki Panic''''' (or ''"Dream Factory: Heart-Pounding Panic"'') is the game that would later become ''VideoGame/SuperMarioBros2''. Shigeru Miyamoto was involved heavily in the game's development. Interestingly, it was originaly a LicensedGame starring the {{Mascot}}s of Fuji Television's Yume Kōjō '87 (Dream Factory '87) event, which promoted several of Fuji Television's shows and other products.[[note]]The enemies were owned by Nintendo, which is why they could appear in other titles.[[/note]] [[DolledUpInstallment It was marketed in the PAL and North American release as "Super Mario Bros. 2"]] because Japan's [=SMB2=], now known as ''[[VideoGame/SuperMarioBrosTheLostLevels Super Mario Bros.: The Lost Levels]]'', was either deemed [[ItsHardSoItSucks too hard]] for non-Japanese gamers, or [[ItsTheSameNowItSucks too much of a clone]]. Unfortunately, Nintendo of America couldn't just sit and wait for Japan to develop another [=SMB2=], since by 1988 Nintendo already released VideoGame/SuperMarioBros3 in Japan.

Made by ShigeruMiyamoto in 1987 for the [[{{NES}} Famicom Disk System]], '''''Yume Kojo: Doki Doki Panic''''' (or ''"Dream Factory: Heart-Pounding Panic"'') is the game that would later become ''VideoGame/SuperMarioBros2''. Shigeru Miyamoto was involved heavily in the game's development. In fact, it was originaly a LicensedGame starring the {{Mascot}}s of Fuji Television's Yume Kōjō '87 (Dream Factory '87) event, which promoted several of Fuji Television's shows and other products.[[note]]The enemies were owned by Nintendo, which is why they could appear in other titles.[[/note]] [[DolledUpInstallment It was marketed in the PAL and North American release as "Super Mario Bros. 2"]] because Japan's [=SMB2=], now known as ''[[VideoGame/SuperMarioBrosTheLostLevels Super Mario Bros.: The Lost Levels]]'', was either deemed [[ItsHardSoItSucks too hard]] for non-Japanese gamers, or [[ItsTheSameNowItSucks too much of a clone]]. Unfortunately, Nintendo of America couldn't just sit and wait for Japan to develop another [=SMB2=], since by 1988 Nintendo already released VideoGame/SuperMarioBros3 in Japan.

* {{Blackface}}: The sprite of what is now the Koopa Shell. Apparently intended as a shrunken head.

* HilariousInHindsight: The character Mama's sprites were replaced by Luigi's for Super Mario Bros. 2. [[WesternAnimation/SuperMarioWorld One cartoon]] [[MemeticMutation and many YouTube Poops later...]]

Made by ShigeruMiyamoto in 1987 for the [[{{NES}} Famicom Disk System]], '''''Yume Kojo: Doki Doki Panic''''' (or ''"Dream Factory: Heart-Pounding Panic"'') is the game that would later become ''VideoGame/SuperMarioBros2''. Shigeru Miyamoto was involved heavily in the game's development. In fact, it was originaly a LicensedGame starring the {{Mascot}}s of Fuji Television's Yume Kōjō '87 (Dream Factory '87) event, which promoted several of Fuji Television's shows and other products.[[note]]The enemies were owned by Nintendo, which is why they could appear in other titles.[[/note]] [[DolledUpInstallment It was marketed in the PAL and North American release as "Super Mario Bros. 2"]] because Japan's [=SMB2=], now known as ''[[VideoGame/SuperMarioBrosTheLostLevels Super Mario Bros.: The Lost Levels]]'', was either deemed [[ItsHardSoItSucks too hard]] for non-Japanese gamers, or [[ItsTheSameSoItSucks too much of a clone]]. Unfortunately, Nintendo of America couldn't just sit and wait for Japan to develop another [=SMB2=], since by 1988 Nintendo already released VideoGame/SuperMarioBros3 in Japan.

* BadAssFamily

* EvilAlbino: There is an albino version of [[MadBomber Mouser]] in Chapter/World 5. When the game was dolled-up as ''SuperMarioBros2'', it was replaced by the GiantEnemyCrab Clawgrip.

* ShoutOut: Before it became a [[VideoGame/SuperMarioBros2 Mario game]], it already had the POW block from the original MarioBros, plus the coins, and Super Star from SuperMarioBros
** It's possible/likely that these items were leftover from when Doki Doki Panic was still a prototype sequel [[Franchise/SuperMarioBros Super Mario]] game.