To honor Grimace's 52nd birthday, McDonald's has released a free-to-play Game Boy Color game that can also be played on your PC or mobile device.

The game is called Grimace's Birthday (via Kotaku) and it was made by a Brooklyn-based indie studio, Krool Toys. The premise of the game is simple, too. You play as a purple blob named Grimace, and you're preparing for his birthday. But the problem is he needs to get his friends Birdie, the Hamburglar, and The McNugget Buddies to his party before it ends.

As for the gameplay itself, it's a 2D side-scroller. For the whole game, you're riding a skateboard through a series of levels where you have to grind on top of rails, use launch pads, avoid Mctrash cans, and more, all while you collect purple milkshakes. There's even a "Hard Mode" for those looking to challenge themselves.