The Game Boy Advance is Nintendo's first horizontally aligned handheld game.

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Here's a good trivia question to ask your friends: Besides the Game Boy and Game Boy Color, can you name one other handheld video game system on the market today? You will probably hear mentions of the Atari Lynx and the Sega Game Gear, portable video games that faded into video game obscurity in the early to mid-1990s. But the truth is that Nintendo has, for all intents and purposes, a very firm grip on the portable video game market. Nintendo estimates that it holds a 90 percent share of the portable game market, though some analysts believe that percentage to be even higher.

The Game Boy Advance is a major leap for the Game Boy line. It is the first to have a horizontal alignment, and it is 17 times faster than the Game Boy Color, which was released in 1998. Read this edition of HowStuffWorks to find out what's under the hood of the Game Boy Advance system.