A recent set of leaks have allegedly revealed Nintendo’s upcoming plans to add emulators for the Game Boy and Game Boy Advance to their Nintendo Switch Online service.

Source: Pokémon Pinball: Ruby & Sapphire (2003), Nintendo

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Rumors that the the Nintendo Switch Online subscription service was planning to add Game Boy and Game Boy Advance games to its catalog of offerings first began in late 2021, courtesy of YouTuber Nate the Hate.

The next month, both EuroGamer and Nintendo Life fueled the fires of speculation by reporting that they had spoken to sources who could corroborate Nate’s claims.

Source: Mario Party Advance (2015), Nintendo

Though reports vary as to where the data originally leaked, the information was brought to widespread attention by Twitter user @trashbandatcoot, who shared alleged screenshots of the Game Boy Advance emulator developer console running on the Nintendo Switch operating system.

“So Nintendo’s official Game Boy Advance emulator for the Nintendo Switch just leaked,” they wrote. “Now it’s just a matter of waiting for NSO to add GBA.”

Source: trashbandatcoot, Twitter

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In a screenshot accompanying @trashbandatcoot’s tweet, a selection of games including Ninja Five-0, Pokemon Pinball: Ruby & Sapphire, Super Robot Taisen: Original Generation, and Tactics Ogre: The Knight of Londis can be seen as playable titles for the GBA emulator.

References to “Multi-player scenarios (2P)” for titles such as Mario Kart, Kuru Kuru Kururin, Mario Bros., Mr. Driller 2, and “Pokemon – Trade” can also be seen, along with technical data for Golden Sun: regarding user profiles, graphical effects, save states, and an option to “Export state to Flashcart.”

Source: Tactics Ogre: The Knight of Lodis (2001), Quest Corporation

Additionally, @trashbandatcoot shared, “some screenshots of it actually working,” previewing screenshots of Game & Watch Gallery 4, Super Mario Advance 4: Super Mario Bros. 3, Yoshi’s Island: Super Mario Advance 3, and a debug menu for F-Zero: Maximum Velocity.

Source: trashbandatcoot, Twitter

Sharing his own findings from the alleged data, fellow Twitter user @Mondo_Mega followed up @trashbandacoot’s initial reveal with a purported list of the games set to be offered for the emulator.

“The library of GBA games they’ve tested for this thing is massive,” he wrote. “Tested is the key word; doesn’t mean they’ll all actually launch on the service.”

Source: Mondo_Mega Twitter

According to his list, the games that have supposedly been tested include:

  • Astro Boy: Omega Factor
  • Castlevania: Aria of Sorrow
  • Drill Dozer
  • Fire Emblem: The Sacred Stones
  • F-Zero: Maximum Velocity

Source: Astro Boy: Omega Factor (2003), Treasure

  • Game & Watch Gallery 4
  • Golden Sun
  • Golden Sun: The Lost Age
  • Gunstar Super Heroes
  • Kirby & The Amazing Mirror

Source: Kirby & the Amazing Mirror (2004), Nintendo

  • Kuru Kuru Kururin
  • Mario & Luigi: Superstar Saga
  • Mario Golf: Advance Tour
  • Mario Kart: Super Circuit
  • Mario Tennis: Power Tour

Source: Mario & Luigi: Superstar Saga (2003), Nintendo

  • Mario vs. Donkey Kong
  • Mega Man Battle Network 2
  • Mega Man Zero 3
  • Metroid Fusion
  • Metroid Zero Mission

Source: Mega Man Zero 3 (2004), Capcom

  • Mr. Driller 2
  • Ninja Five-O
  • Pokémon Pinball: Ruby & Sapphire
  • Super Mario Advance 4: Super Mario Bros. 3
  • Super Robot Taisen: Original Generation

Source: Super Robot Taisen: Original Generation (2002), Bandai Namco

  • Tactics Ogre: The Knight of Lodis
  • Wario Land 4
  • WarioWare Inc: Minigame Mania
  • Super Mario Advance 3: Yoshi’s Island
  • The Legend of Zelda: The Minish Cap

Source: The Legend of Zelda: The Minish Cap (2004), Nintendo

Further, @Mondo_Mega offered an additional set of games that were purported to have been “in the rom folder at some point but not in the leaked build,” such as:

  • Car Battler Joe
  • Castlevania: Circle of the Moon
  • ChuChu Rocket!
  • Harvest Moon: Friends of Mineral Town
  • Kingdom Hearts: Chain of Memories

Source: Kingdom Hearts: Chain of Memories (2004), Square Enix

  • Koro Koro Puzzle Happy Panechu!
  • Lufia: The Ruins of Lore
  • Mario Party Advance
  • Mega Man Battle Network 5 – Team ProtoMan
  • Pokemon Mystery Dungeon: Red Rescue Team

Source: Mega Man Battle Network: 5: Team Protoman (2004), Capcom

Teasing one more game, @Mondo_Mega added, “There’s one other game with evidence of being tested though. There are multiple screenshots of different berry tag screens from Pokemon Ruby / Sapphire / Emerald saved in the emulator; most likely taken during link cable emulation testing.”

Source: Mondo_Mega Twitter

Turning to the topic of the GBA’s younger brother, @Mondo_Mega further claimed, “Not much to talk about with [Game Boy Color]. The build of [the emulator, codenamed] Hiyoko we have here is in an earlier state than [the GBA emulator, codenamed] Sloop.”

“Each game is a separate app and there’s only four of them,” he stated, listing out “Super Mario Land, Link’s Awakening DX, Tetris, and Qix.”

Source: Mondo_Mega, Twitter

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Offering insight into the alleged leaks, dataminer and contributor to the Dolphin GameCube and Wii emulator @OatmealDome – who first discovered the Hiyoko emulator was in development for the Switch over three years ago – tweeted, “[Hiyoko] The Game Boy emulator is very early in-dev.”

@OatmealDome claims. “Each game is shipped as its own app and has the same icon (shown below),” he added. “It appears to have netplay support for link cables, with each Switch emulating two Game Boys at the same time and simulating a Link Cable between them.”

Source: OatmealDome, Twitter

He further explained, “Interestingly, while it does have netplay support, it doesn’t use any of the usual Nintendo network libraries (NEX, pia). Possibly a custom server [being used] for testing. The SDK used is also very old (v6.4.0, circa 2018!), indicating that this is likely a really old build!”

Source: OatmealDome, Twitter

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Speaking to the GBA emulator, @OatmealDome then noted that “traces left behind in the code appear to indicate that the GBA emulator is being co-developed by Nintendo Europe Research and Development (NERD) and Panasonic Vietnam,” elaborating, “NERD was responsible for emulation in Super Mario 3D All Stars, NSO, and the Mini consoles”.

Source: OatmealDome, Twitter

Claiming to have further evidence to support the emulators’ existence, Pokemon-centric dataminer @pory_leeks shared a video allegedly depicting both Hiyoko and Sloop running on a personal Switch console.

 

However, despite these purported screenshots and videos, some had their doubts.

@ModernVintageG, a developer at Night Dive Studios, highlighted, “Nintendo internally acknowledging EZFlash cartridges make this leak feel off to me. I don’t think Nintendo developed it at all if it’s real.”

Source: ModernVintageG, Twitter

What do you think of the claims? Do you like the titles rumored to be on offer? Let us know what you think on social media and in the comments below. 

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  • About The Author

    Ryan Pearson

    Taking his first steps onto Route 1 and never stopping, Ryan has had a love of RPGs since a young age. Now he's learning to appreciate a wider pallet of genres and challenges.

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