Xii-Boy Ultra Wii Portable

The Xii-Boy Ultra is a brand-new generation vertical portable Wii.

It uses a real Wii motherboard that has been cut down to fit in that tiny shell, around 25% smaller than the original GameBoy from Nintendo.

By using real hardware, games natively run at full speeds without any bug or slow down. We can also benefit of all the possibilities the Wii can offer.

It even re-adds features Nintendo has been shut down, like online gaming over WiFi! 

Considering it's size, the original disks won't fit in that portable. To save on size, noise and battery consumption, the DVD drive has been replaced by an integrated µSD Card accessible from the external USB-C connector. Games must be ripped before doing the mods.

It also offers fast charging over USB-C, the ability to play our saves on a big screen by plugging it to another Wii, reconnecting the official WiiMote controllers, and more!

By default, this Xii-Boy Ultra can play all the Nintendo Wii games, Nintendo GameCube games, all the Virtual Consoles, and a lot of emulators.

The integrated GameCube controller is perfect for Gamecube games, and the analog triggers feel absolutely amazing. The buttons can be assigned to WiiMote inputs to play almost every Wii Games without connecting a WiiMote! Some games won't work though, like Zelda Skyward Sword due to the gyroscope, but you can easily play it with a WiiMote.

The games are displayed on a crisp 480p Laminated Screen, powered by the RVL-DD which offers the best video quality / compatibility possible. 

The Xii-Boy Ultra is powered by 2x 18650 cells, which gives a lifetime of around 2 to 3 hours, depends on the game we're playing.

This portable is the world's first of its kind to offer the Wire-Free technology, which allows an easy assembly or disassembly of the system without any soldering iron.

You can also check that BitBuilt Tread for further information: https://bitbuilt.net/forums/index.php?threads/the-xii-boy-ultra-v3-beta-release.6918/

If you're interested of making one, here is the Github repository: https://github.com/Xenii1642/Xii-Boy-Ultra

The case can be ordered through JLC3DP, PCBWay or else.

You can also print it yourself with or without support, in 0.2mm layer thickness.

Have fun! 

REV2.0 - Last update 11th January 2026