Everyone’s favorite 8-bit handheld video game device turns 22 years old today. Nintendo’s Game Boy was originally released in Japan on April 21, 1989. Over the past 22 years, the Game Boy and the Game Boy Color have sold over 118.69 million units worldwide, so Nintendo definitely has something to celebrate today.When the Game Boy was released in the U.S., it sold its entire shipment of 1 million units within just a few weeks. Until recently when the DS reached 128.89 million in sales, the Game Boy was Nintendo’s best-selling handheld device.To celebrate the Game Boy’s birthday, let’s take a trip down memory lane, and follow it up with a really cool video.April 21, 1989: It’s a boy!The first in a long line of Game Boys was created by Gunpei Yokoi and Nintendo’s R&D 1 team. Was actually the second handheld system for Nintendo, following the Game & Watch series introduced in 1980. The Game Boy was basically the love child of the Nintendo Entertainment System and Game & Watch.January 1, 1995: Play It Loud!It’s as if people were already tired of the boring, old grey body of the Game Boy. Nintendo released several Game Boy models with colored cases as part of the “Play It Loud!” campaign. The Game Boys had red, green, black, yellow, blue, white, and clear cases. [Photo via Amazon]1996: Game Boy’s get smallerThe Game Boy Pocket arrived as a smaller, lighter version that even required less batteries. The Pocket took 2 AAA batteries and provided up to 10 hours of game play. Its screen was changed to a true black-and-white display, but like the original Game Boy, it had no backlight, so you still couldn’t play it under your covers at night when you were supposed to be asleep. [Photo via Wikipedia]April 15, 1998: The rarest of the rareAvailable only in Japan, the Game Boy Light is considered the rarest of the Game Boys in the land. It uses two AA batteries that give it 20 hours of better life. It was the only handheld Nintendo device to have an integrated backlight until the Nintendo DS was released in 2004. [Photo via Ask.com]October 21, 1998: Things get colorfulThe Game Boy Color added a color screen. It has a slightly smaller form factor than the Game Boy Pocket. Though it had a smaller body, it had double the processor speed, three times as much memory, and an infrared communications port. It was also backwards compatible with older Game Boy games, and could play almost all previous game cartridges in a selected color palette. The backwards compatibility became an important feature in the Game Boy line. [Photo via michi003]June 11, 2001: A new Game Boy for a new centuryThe 32-bit Game Boy Advance had a larger, higher resolution screen than any of its predecessors. It added the “L” and “R” buttons that we now see on the DS line. However, the screen was not backlit, which made it particularly hard to see in some conditions.February 14, 2003: A cellphone-lookalike?The Game Boy Advance SP looks like a tiny laptop with its smaller clamshell design and flip-up screen. It’s about half the size of the original Game Boy, and it was the first to have an internal front light that could be switched on and off. [Photo via nexthttp]September 2005: Game Boy goes microThe third version of the Game Boy Advance system was the 4.5-inch-wide Game Boy Micro. It was only two inches tall, and weighed just 2.8 ounces. It’s by far the smallest Game Boy ever, and it’s about the same size of the original NES controller. The screen is about two-thirds the size of the previous two Game Boy Advance models, but it also has a higher quality backlit display with adjustable brightness. [Photo via hazuijunpei]As an added extra, here’s a cool video from YouTube user MrSeberi. Unlike the traditional chiptune music you hear from using consoles to create music, this video shows the creator using only the Game Boy’s hardware to create an interesting song. All sounds came from the Game Boy itself, and no effects were used. You can also download the MP3 for free via the YouTube page.Happy birthday, Game Boy!