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'''''Chippoke Ralph no Daibouken''''' (''Little Ralph's Big Adventure''), officially called in English as ''The Adventure of Little Ralph'', is a little-known {{PlayStation}} 2D platformer published only in Japan in 1999. The game's protagonist, Ralph, starts out as a grown man, but is turned into a child by the BigBad. For most of the game, Ralph stays a child, except for every boss fight after the midboss, [[UnexpectedGameplayChange in which the gameplay changes to that of a fighting game]].

The game's most unique factor is its graphics, as the game is one of the few 2D platformers released in TheFifthGenerationOfConsoleVideoGames. Most developers stressed the 3D capabilities of the 5th-gen consoles, so 2D was shunned, for the most part, until TheSixthGenerationOfConsoleVideoGames, when "retro" gaming started to rise in popularity. In fact, ''The Adventure of Little Ralph'' could be the first {{Retraux}} video game, given that it was designed as a 16-bit platformer but was released during a time when 16-bit was seen as obsolete. Possibly due to the game's lack of appeal because of this supposed obsolescence, the game was never localized for international markets, and it languished in obscurity, known only by niche retro gaming sites, until very recently, when major game journalism sites played and reviewed the game.

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!!This game provides examples of:

* EasyModeMockery: In the game's Easy Mode, one skips the last few worlds and does not get to see the true ending to the game.
* LoadingScreen: Each level is separated by a looping corridor that hides the game's loading times.
* NintendoHard: It makes sense that the game is very difficult because of its intentional retro stylings.
* {{Retraux}}: Possibly the first Retraux game ever.
* UnexpectedGameplayChange: The fourth stage's boss fight suddenly changes the gameplay into a FightingGame, with Ralph temporarily aging up to do battle with the level's boss in a style that's very reminiscent of the many, many SNES fighting games that tried to cash in on Street Fighter II's popularity.
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