Reino Aventura

Reino Aventura (Spanish for "Adventure Kingdom") was an amusement part in the southwest part of Mexico City in Tlalpan. Opening in March 3rd, 1982, it was known as the biggest amusement park in Latin America. The place itself was then rebranded into Six Flags Mexico starting in 2000, when Six Flags purchased the amusement park.

The amusement park became relevant again as the lore regarding Super Mario 64 had grown, which is because of Nintendo's tie-in with the park itself, specficially for the game itself. The tie-in of Reino Aventura and Nintendo consisted of two Super Mario 64-themed attractions; Peach's Castle and Casa de Mario.

The sudden spark of relevancy can be attributed to LSuperSonicQ's video regarding the tie-in and its contents seen here: https://ww.youtube.com/watch?v=7h3ufaPcQ1c

Peach's Castle
Peach's Castle was one of the major two attractions made for the tie-in between Nintendo and Reino Aventura's promotion towards Super Mario 64. The architecture in the building itself was reminiscent of the Cinderella Castle in Disney theme parks, albeit smaller in scope and Nintendo themed. The appearance of the castle differed from the one in Super Mario 64, with different floor sizes and more towers that surrounded the castle's fort.

The major part of the castle were mainly arcade games that players could play with. Most of the arcade games seemed to be not related to Nintendo. It seemed to be less of an attraction like Casa de Mario, more akin to a homage to him and his games all around. The insides of the castle itself other than that information seem to be lost in time.

There are rumors of a Peach mascot suit being used for the event, based on one of the screenshots of the attraction. It could be one of the towers of the castle itself with the effect of low-quality imagery being the reason of why it was mistaken for Peach to be in the place, given the images provided. Accounts of this place itself have not been uncovered yet other than the sources LSuperSonicQ had provided, so it is hard to say.

Casa de Mario
Casa de Mario ("House of Mario" in Spanish) was the other main attraction for the tie-in between Nintendo and Reino Aventura. It was a remodeled version of the attraction Casa de la Risa ("House of Laughter" in Spanish) to fit with the theme of the Mario franchise. The outside appearance of the place seems to be house-like, with Mario's face being plastered on the side of the building.

The contents of Casa de Mario revolved around the major history of Nintendo itself, with multiple paths being made to provide different experiences for the people who went in the attraction. The attraction started in a foyer reminiscent of Peach's Castle's first floor in Super Mario 64. Contents included with the foyer include coins, star doors leading to multiple paths, a Wing Cap block, and two Bob-Ombs (one enemy and one Bob-Omb Buddy).

The different doors in the attraction would lead to other main spots that are about Nintendo 64 games, like Donkey Kong 64 and Super Mario 64. Attractions included in the areas are a Donkey Kong 64 area with bananas on the ceiling, an area for Killer Instinct where guests did "rare combinations", a submarine room with low temperature, a rotating tunnel, and a room that was supposed to be the inside of Star Wars' Millennium Falcon.

The ending of the attraction would lead the guests into a "Nintendo Store", where about 40 demos of Nintendo 64 and Nintendo 64 games were located to be played. It was also stated that you could by pins, hats, and T-shirts from the store itself.

Bowser also makes an appearance in the attraction, abliet in an unknown location. Judging from context, it seems to be in a fiery cave location, not unlike Bowser's domains in other Mario games.

The area in which Casa de Mario is in is still around when Six Flags bought the location and made it into Six Flags Mexico. However, the place itself was remodeled to be a pirate-themed battle arena. It is unknown where the props and designs for the Mario remodeling are, if they are still around to this day.

Obscurity of the Attractions
Although Reino Aventura was one of the most popular amusment parks in Latin America, sources regarding the tie-in between the park and Nintendo along with the two major attractions from it are scarce. One theory on why this was the case would be that most of the sources of the time were scrubbed away by Nintendo and/or Six Flags themselves. For Six Flags, it could be just for rebranding purposes for the pirate-themed area that replaced Casa de Mario, along with the replacement of Peach's Castle. Nintendo's case could be related to the takedown of anything related to the Personalisation A.I of Super Mario 64 along with any other malicious stuff in the game, as the attractions themselves were mostly related to Super Mario 64 itself.

Casa de Mario's "Personalization"
Casa de Mario's main selling point was the unique experiences that would be brought by the multiple pathways given in the attraction, with each path showing off different attractions in the area. This mechanic for the attraction could be Reino Aventura's way to emulate the personalisation of Super Mario 64, albeit with the technology that they had. It also implies that the people behind Reino Aventura knew about Nintendo's secrets regarding the game, considering the theory about Casa de Mario. This could be a major incentive on why Nintendo could have scrubbed mostly anything related to the attractions themselves.

Along with this information, one of the demos shown in the "Nintendo Store" could be the Spaceworld demo for Super Mario 64, which is assumed to have the personalisation A.I. It is unknown of the specifics of which demos were shown in said store, but the Spaceworld demo would be a huge possibility, considering the attractions in the tie-in for Reino Aventura and Nintendo were themed around Super Mario 64. It's highly unlikely that one of the demos was the July 29th build of the game, but it could have been accidentally been unveiled in the store. That could be another reason why Nintendo could have scrubbed most of the mentions of the tie-in.

Differences in Peach's Castle
The different architecture in Peach's Castle has two theories regarding how it was done. The simplest theory would be that it was a stylistic choice by Reino Aventura to alter the design of the castle for their attraction; to fit more with the amusement park feel. Considering Nintendo's strict policies with the use of the Mario property, it could be assumed that this theory could not be true.

Another, more unusual theory would be that the Peach's Castle in the amusement park was based off of a personalized copy of Super Mario 64's version of Peach's Castle, from one of the higher-ups of the Reino Aventura park. References done for the building of this castle could be based from this personalized copy of the game. However, it may be unlikely because of Nintendo's covering up of the personalisation of the game for so long.

Reino Aventura Knew of the Personalisation
Considering that some of the theories above connect the park attractions and the obscurity of them to the personalisation A.I, it may as well be possible that Reino Aventura had known of the contents of the AI, or parts of it at a minimum. It could explain the differences between the game's designs and the park's designs, along with why the attractions themselves were obscure.

How the park company known of the AI is also unknown. It is probable that Nintendo had told the company about some parts of the AI and to keep it a secret. Another possibility would be that one of the higher-ups of Reino Aventura had been given access to documents and such regarding the AI either on purpose, by accident, or through a leak done by said higher-up. Considering the reprecussions of having such information, it is most likely that this information was kept a secret from Nintendo or were kept a secret between both companies.

Trivia

 * The tie-in between Reino Aventura and Nintendo was possibly the first experience Nintendo had with theme parks, with Super Nintendo World coming decades later as a partnership between Nintendo and Universal.