Kawaii – A Keychain-Sized Nintendo Wii
A custom hardware project called “Kawaii” shrinks an original Nintendo Wii motherboard down to a keychain-sized unit by physically trimming the board and wiring back only the essential components. Commenters highlight how far console miniaturization can go while retaining full hardware compatibility, compare it to other ultra-compact Wii and GameCube builds, and note trade-offs such as reliance on an external dock for power, video, and controllers. The thread also raises concerns about Nintendo’s aggressive trademark enforcement, alongside broader reflections on retro hardware, modern emulation, and the enduring appeal of simple, fun games that don’t require cutting-edge specs.
Miniaturization and Hardware Approach
- Kawaii is built from an original Wii motherboard using the “Omega trim,” physically cutting away nonessential areas and reconnecting parts via flex PCBs.
- This preserves full hardware compatibility and runs the real Wii software stack, unlike FPGA or pure emulation solutions.
- Trimming Wiis is an established hobby; previous projects include PS2 Ultra Slim, GC Nano, and Short Stack.
- Some argue the logical next step is a fully custom PCB with transplanted chips; others say the complexity and existing trims make that not worth the effort.
Functionality, Dock, and Comparisons
- Kawaii’s core unit lacks its own power input, AV output, and wireless, so it effectively requires a dock for power, video, and controller ports.
- This raises debate over whether it truly “counts” as the smallest Wii versus smaller-but-self-contained builds like Short Stack.
- Others note the project’s goal is extreme miniaturization, not everyday usability.
Sensor Bar and Input Tricks
- Multiple comments explain the “sensor bar” is just IR LEDs; the Wiimote has the actual camera.
- Any two IR sources (candles, lighters, DIY bars, wireless bars) can substitute; anecdotes highlight how surprising this is to many users.
- This is compared to other clever Nintendo “inverted” designs like the NES Zapper.
Power, Undervolting, and Cooling
- The related “Thundervolt” work cuts the board further and adds an external DC-DC module, undervolting to reduce power and enable passive cooling.
- Discussion touches on I²R/IR losses, load-line behavior, and why having VRMs close to the chip can allow more aggressive undervolting.
Legal and Trademark Concerns
- Several commenters think engraving or printing Nintendo logos on custom shells is legally risky, even when using original Wii hardware.
- Trademark law is described as “defend it or lose it,” with expectations that Nintendo will aggressively send cease-and-desist letters.
Retro Gaming Culture, Fun, and Names
- Many express delight at the build and at the broader scene of tiny Wiis/GameCubes.
- Some wish for a formal “smallest console” contest.
- Naming sparks playful debate: suggestions include Kawii, Kawawii, Key-wii, WiiChain, and Nintendo Wee.