Grimace’s Birthday – McDonald’s 2023 Viral GBC Game on Cartridge | Game Boy Color

Grimace’s Birthday – The Viral 2023 McDonald’s Game Boy Color Game, Now on a Real Cartridge
In June 2023, McDonald’s dropped a free Game Boy Color game to celebrate Grimace’s birthday. Within days, TikTok had turned it into a horror meme phenomenon. Within weeks, it had become one of the most talked-about retro-style games of the year — not just as a meme, but as a genuinely good GBC homebrew that people actually wanted to play.
Developed by Krool Toys, Grimace’s Birthday is a cheerful side-scrolling platformer in which you guide the big purple guy through McDonaldland collecting milkshakes, all rendered in the warm, pixel-perfect style of a late-era Game Boy Color release. It’s short, sweet, and surprisingly well-crafted — exactly the kind of thing that makes you wish McDonald’s had been making GBC games all along.
This custom cartridge is the definitive way to own it: no phone emulator, no browser tab, just Grimace on real GBC hardware exactly as the format was meant to be played. A perfect novelty gift, a genuine piece of 2023 internet history, and one of the most instantly recognisable games in the store.
Credits: Krool Toys
🎮 Compatible with: Game Boy Color · Game Boy Advance · GBA SP
✅ Available in 8 shell colors: Gray, Red, Blue, Yellow, Black, Clear Blue, Green, Gold