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Super Mario World

Decades after the game’s original release, fans have managed to get their hands on the prototype map for Super Mario World.

You may remember the Nintendo “gigaleak” that took between 2018 and 2020. A ton of information was revealed about previously-released games, including protoypes, source code, and much more.

Super Mario World localization prototype

Forest of Illusion has secured a little piece of Nintendo history having shared a prototype build from the localized version of Super Mario World. It has a date of October 25, 1990, which was nearly a year before the game launched in North America.

A number of debugging features are included, which made localization easier for developers. For instance, Mario can access any point of the map without completing the previous stage. Also, when the timer hits zero, he doesn’t die. Other features include being able to instantly complete a level, toggling between different colored Yoshis, cycling through power-ups inside a stage, and moving Mario anywhere on the screen.

It’s been nearly a week now since the big Nintendo leak involving game prototypes, source code, and more. But discoveries pertaining to some of the companies older games continue to emerge, and if you’re a fan of history or some of the Big N’s classics, you might be interested in some of the latest findings.

Among the leaks is the discovery of human NPCs in the original Animal Crossing while it was being developed for the N64, and we even have a few images of these characters. Another major finding is are in-development sprites of Mario with wings from Super Mario World.

Here’s the full roundup:

Since our last report on the new Nintendo leaks, a bunch of additional findings have been publicized online. Much of what has been found over the past day or so pertains to N64 titles, including beta/unused enemies for Super Mario 64 and Zelda: Ocarina of Time. We also have a look at scrapped items for Mario Kart 64 and more.

Here’s the roundup of notable discoveries:

Other than some concept art, the Super Mario World interview on Nintendo’s Japanese website with some of its original developers also reveals some fascinating tidbits about the game. One especially interesting part is about Mario and Yoshi – specifically, what exactly is Mario doing with his hand just before Yoshi sticks his tongue out?

Due to the graphical limitations of the SNES, it was never really clear if Mario points at something and tells Yoshi to go get it – or if he hits him on the head, which causes Yoshi to stick his tongue out in surprise. Turns out it was originally the latter, but it was officially changed to the former via some official artwork (though it’s still ambiguous with the in-game sprites). Here’s what Shigefumi Hino, who was the Character Graphic Designer on Super Mario World and who created Yoshi, had to say about it:

In a recent interview about the SNES Classic Edition developer interview they covered Super Mario World. In the interview we got some images of some original sprite work and a very noseless Yoshi. There are also a few other notable sprites including the red magic balloon and the different Hammer Bros. I can’t tell if Yoshi looks more adorable or horrifying in its original sprites.


Update: Donkey Kong Country comparison added below.

Original: The folks over at Nintendo World Report have a couple of comparison videos involving the Super NES Classic Edition. Star Fox 2 is compared to the beta while Super Mario World is compared to the original SNES release. Both videos are included below.

With the release of the SNES Classic around the corner, Nintendo decided to make up some artwork in the format of Nintendo Power magazine covers. These three pieces of artwork cover Super Mario World, The Legend of Zelda: A Link to the Past, and Star Fox 2.

Nintendo urged fans on Twitter to download and enjoy the covers, but those attending PAX West this week can obtain physical copies.

Images below.


Did you know Big Boos can be defeated by sliding down stairs in Super Mario World. It’s the only Boo in the game that can be taken down in that manner, so perhaps it was an oversight on the part of Nintendo’s developers.

Some players definitely knew about this, but there are plenty who were completely unaware of it. How many of you tried out that little secret back in the day?


YouTube user SethBling has managed to inject Flappy Bird code into Super Mario World by taking advantage of several glitches. This is particularly notable, as no person has done this sort of exploit in the past. It’s a bit complicated, but you can see how the full process was accomplished below.

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