| Grimace's Birthday | |
|---|---|
 Menu screen | |
| Developer(s) | Krool Toys |
| Publisher(s) | McDonald's |
| Producer(s) | Mike Wires |
| Designer(s) | Tom Lockwood |
| Programmer(s) | Bryan Taylor |
| Artist(s) | Tom Lockwood |
| Platform(s) | Browser |
| Release | 12 June 2023 |
| Genre(s) | Platformer |
| Mode(s) | Single-player |
Grimace's Birthday is a 2023 browser-based platformer game developed by Krool Toys and published by McDonald's. Released alongside the Grimace Shake on 12 June 2023, the game was produced using software to imitate a Game Boy Color title. While the game did not receive a physical release and is not a Nintendo-licensed Game Boy game, its files are compatible with Game Boy hardware. Grimace's Birthday was positively received, with several critics directing attention to the unexpected theme and medium for a promotional game and the strong likeness of the game's visual presentation to Game Boy titles.