Skip to main content

Buried Treasure: Lost Mario Kart game unearthed on a Game Boy Advance cartridge

Mario Kart XXL Nintendo Gameboy Advance Prototype / Demo
Footage from an unreleased, third-party developed sequel in Nintendo’s long-running Mario Kart series has surfaced on YouTube, fueling fan speculation regarding the cancelled project.

Made by Denaris Entertainment Software, the purported demo for Mario Kart XXL features a unique gameplay perspective not seen in other Mario Kart games. The prototype appears to be in the alpha stage of development, as it includes only a single playable racetrack with no rival racers.

Recommended Videos

Denaris Entertainment Software is a German studio founded by Turrican creator Manfred Trenz in 2004. While Mario Kart XXL was listed as one of Denaris’ pitched projects, little was known about the game prior to the recent prototype discovery.

Please enable Javascript to view this content

Though some speculate that Mario Kart XXL‘s released footage is a hoax, the video creator’s channel features several prototype games, including the Trenz-developed Katakis 3D for the Game Boy Color. Prototype and demo versions of unreleased games for many platforms frequently appear on eBay and other online storefronts.

Denaris Entertainment Software created several games for European markets in the years after Mario Kart XXL‘s apparent cancellation, including CT Special Forces for the Sony PlayStation and the Nintendo DS titles Ankh and Paws & Claws: Pet Vet – Healing Hands.

While Nintendo rarely grants third-party developers access to its core franchise characters, the practice has become more commonplace in recent years. Nintendo previously tapped developer Retro Studios for many entries in its Metroid Prime and Donkey Kong Country series, and Next Level Games has produced titles like Mario Strikers Charged, Punch-Out, and Luigi’s Mansion: Dark Moon.

Though Nintendo released its own Mario Kart game, Mario Kart: Super Circuit, for the Game Boy Advance in 2001, the Denaris-developed prototype appears to have been created years later, given that it features promotional art from 2003’s Mario Kart: Double Dash. No further details regarding Mario Kart XXL‘s development or cancellation are known.

Danny Cowan
Former Digital Trends Contributor
Danny’s passion for video games was ignited upon his first encounter with Nintendo’s Duck Hunt, and years later, he still…
A brand new Mario & Luigi game is coming and it looks gorgeous
Mario and Luigi high fiving each other with stars surrounding them.

Mario & Luigi: Brothership – Announcement Trailer – Nintendo Switch

Mario and Luigi are coming back to the Nintendo Switch, but this time in their own spinoff called Mario & Luigi: Brothership, which is releasing on November 7 for the Switch console, just in time for the holiday season.

Read more
Our favorite Switch games of 2023: Tears of the Kingdom, Mario, and much more
Link stands behind text that says Best Switch Games 2023.

If 2023 was our last full year with the Nintendo Switch, what a heck of a sendoff it got.

The rumor mill has been buzzing for months now, claiming that Nintendo plans to reveal and release its Switch successor next year. While that’s a rumor you should take with some skepticism, there’s good reason to believe it may happen. Nintendo reportedly showed off the system to developers behind closed doors at Gamescom this year, and the Switch’s current 2024 lineup feels like the final drop we’d get right before a new system. The Switch could be old news this time next year.

Read more
With its final DLC, Mario Kart 8 cements its legacy as a multiplayer classic
mario kart 8 deluxe final dlc analysis diddy kong in

I never truly realized how genius Nintendo's Mario Kart formula is until I got borderline obsessed with mastering Mario Kart 8 Deluxe. Like Mario Kart Wii, this is a game where you can either pick up casually or go hardcore , learning everything to try to increase your online VR points and reach higher ranks.

If that was enough to make Mario Kart Wii the best entry in the series for its time, Mario Kart 8 Deluxe has taken the series to new heights throughout its nearly decade-long life span. With its final Booster Course DLC out now, Nintendo has finally cemented the kart racer as one of the best multiplayer games of all time. Period.
Reaching perfection
Mario Kart 8 was originally released on Nintendo's Wii U system and made a splash as one of the system's big sellers -- for all that's worth. When the Nintendo Switch released, Nintendo quickly capitalized by rereleasing Mario Kart 8 with a new Deluxe subtitle. That would bring new content and modes, as well as a long-tailed DLC plan once it became clear it was going to be one of the Switch's biggest hits.

Read more