Developer Gabriel O'Flaherty-Chan recently shared a project where he managed to get a Game Boy emulator he dubbed "Giovanni" running on the second-generation Apple Watch, allowing it to play Game Boy and Game Boy Color games.

According to O'Flaherty-Chan, it was a challenge finding the right balance "between framerate and performance," but he says the end result is a "surprisingly usable emulator." In GIFs shared in a blog post, the Apple Watch is displayed running Pokémon Yellow.

applewatchpokemonyellow1
The Giovanni emulator, named after the villain in Pokémon Yellow, was built using open source code from Gambatte, an existing iOS emulator. It uses the Digital Crown and gestures for control purposes.

applewatchpokemonyellow2

By allowing the user to pan on screen for directions, rotate the Digital Crown for up and down, and tap the screen for A, I was able to eliminate buttons until I was left with Select, Start, and B.

Touching the screen for movement isn't a great interaction, but being able to use the Crown worked out a lot better than originally anticipated. Scrolling through a list of options is basically what the Crown was made for, and if the framerate was even slightly higher, the interaction could almost be better than a hardware D-pad.

As Ars Technica points out, Giovanni is not something you should expect to see in the App Store -- it's more of a proof of concept than anything else. Apple does not allow emulators on the App Store, and O'Flaherty-Chan himself says it is afflicted with bugs due to the "constraints of watchOS," including the lack of support for OpenGL and Metal.

The Giovanni source code is, however, available on Github for anyone to download, and the blog post behind the creation of Giovanni is worth reading for anyone interested in the development process.

Tags: hack, emulator

Top Rated Comments

jclo Avatar
61 months ago
Couple days late on this one MR
Send us a tip next time! Sometimes things go under the radar, especially on the weekend. I thought this was interesting to share even if we're a couple days late. It's always fun to see weird stuff running on the Apple Watch.
Score: 8 Votes (Like | Disagree)
Relentless Power Avatar
61 months ago
There was an article similar last year with a developer (Nick Lee) running windows on the Apple Watch.

Score: 2 Votes (Like | Disagree)
WRChris Avatar
61 months ago
Send us a tip next time! Sometimes things go under the radar, especially on the weekend. I thought this was interesting to share even if we're a couple days late. It's always fun to see weird stuff running on the Apple Watch.
Ok, I will do that. Is there a specific place I should send tips? I notice you guys don't post anything on the weekends typically and I think that's when I read about this.

It is a good read, for those who haven't read it already! Keep up the good work!!! Love the site
Score: 2 Votes (Like | Disagree)
jclo Avatar
61 months ago
Ok, I will do that. Is there a specific place I should send tips? I notice you guys don't post anything on the weekends typically and I think that's when I read about this.

It is a good read, for those who haven't read it already! Keep up the good work!!! Love the site
Yep, tips@macrumors.com. Feel free to send us anything interesting you come across.
Score: 2 Votes (Like | Disagree)
WRChris Avatar
61 months ago
Yep, tips@macrumors.com. Feel free to send us anything interesting you come across.
Thanks for your time!
Score: 1 Votes (Like | Disagree)
mazz0 Avatar
61 months ago
Pi-KA-chu!
Score: 1 Votes (Like | Disagree)

Popular Stories

telsa cyberwhistle

Elon Musk Urges Customers to Buy 'Tesla Cyberwhistle' Instead of Apple Polishing Cloth

Wednesday December 1, 2021 4:01 am PST by
Tesla CEO Elon Musk has encouraged customers to buy the "Cyberwhistle" for $50 instead of Apple's much-discussed Polishing Cloth. The product page, which Musk shared on Twitter on Tuesday evening, offers a limited edition stainless steel whistle with the same distinctive design of the Tesla Cybertruck:Inspired by Cybertruck, the limited-edition Cyberwhistle is a premium collectible made from ...
iPhone SE Cosmopolitan Clean

New iPhone SE Reportedly on Track for Release in First Quarter of 2022

Tuesday November 30, 2021 8:08 am PST by
Apple plans to release a third-generation iPhone SE in the first quarter of 2022, according to Taiwanese research firm TrendForce. If this timeframe proves to be accurate, we can expect the device to be released by the end of March. As previously rumored, TrendForce said the new iPhone SE will remain a mid-range smartphone with added support for 5G:In terms of product development, Apple is...
maxresdefault

Five Features to Look Forward to in the 2022 MacBook Air

Tuesday November 30, 2021 1:51 pm PST by
In 2022, Apple is going to release an updated version of the MacBook Air with some of the biggest design changes that we've seen since 2010, when Apple introduced the 11 and 13-inch size options. In the video below, we highlight five features that you need to know about the new machine. Subscribe to the MacRumors YouTube channel for more videos. No More Wedge Design - Current MacBook...
2017 apple tv

Cyber Monday: Original Apple TV 4K Drops to $99.99 for Amazon Prime Members

Monday November 29, 2021 12:01 pm PST by
We've been tracking Apple product and accessory deals for Cyber Monday 2021 today, and now Woot is offering a solid discount on the previous generation 32GB Apple TV 4K. You can get this device in new condition for just $99.99 if you're an Amazon Prime member. Note that this sale will last for one day only. Note: MacRumors is an affiliate partner with some of these vendors. When you click a...
apple top apps games 2020

Apple Reveals the Most Downloaded iOS Apps and Games of 2021

Thursday December 2, 2021 12:05 am PST by
Along with naming its editorial picks for the top apps and games of 2021, Apple today shared charts for the most downloaded free and paid apps and games in the United States across 2021. The number one most downloaded free iPhone app was TikTok, followed by YouTube, Instagram, Snapchat, and Facebook. The top paid iPhone apps included Procreate Pocket, HotSchedules, The Wonder Weeks, and Touch...
Mac Notebook Upgrade Program

Apple Introduces New MacBook Upgrade Program for Business Partners

Monday November 29, 2021 7:38 am PST by
In association with CIT as the financing partner, Apple has launched a new Mac Upgrade Program for small businesses and Apple business partners that allow companies to easily distribute and upgrade their fleets of MacBooks at an affordable price to all of their workers. As outlined on CIT's website, shared by Max Weinbach, Apple Business Partners can distribute the 13-inch MacBook Pro,...
airpods prototype translucent

Transparent AirPods and 29W Power Adapter Prototypes Surface in Photos

Tuesday November 30, 2021 7:16 am PST by
Images of transparent prototype AirPods and a 29W Apple power adapter have been shared on Twitter by Apple device collector Giulio Zompetti. The prototypes, which appear to be either first-generation or second-generation AirPods, feature clear plastic along the stem and around the outer side of the earbud, with the normal white plastic on the inner side of the earbud. Transparent casings are ...
apple view concept right corner

Apple Planning to Replace the iPhone With AR Headset in 10 Years

Wednesday December 1, 2021 2:29 am PST by
Apple is planning to replace the iPhone with an augmented reality (AR) headset in 10 years, a process that is apparently due to start as soon as next year with the launch of a head-mounted device, according to a recent report. Concept render of Apple's rumored AR headset by Antonio De Rosa In a note to investors seen by MacRumors, eminent analyst Ming-Chi Kuo explained that "Apple's goal is...