Has it been twenty years already?

For those of you who don't know, Nintendo's Game Boy system turns 20 on July 31, 2009. It's hard to believe the little guy is already two decades old, but I guess time really does fly when you're having fun.

The original Game Boy system hit the video game scene in North America in 1989 at a retail cost of $89.99 and was a runaway sales success from day one, selling over 40,000 units on its first day of release. Of course it didn't hurt that the system was bundled with the massively popular Tetris title either.

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From the moment they released their Game Boy system, Nintendo took control of the portable gaming market and have never really let go of it, still going strong some 20 years later. The system was even able to fend off more powerful offerings of the time period like Sega's Game Gear and Atari's Lynx, both of which offered full color screens.

Now that's a system-seller!

Of course over the years, we would end up seeing quite a few upgrades and new Game Boy systems released, each offering up an even better and more powerful gaming experience than the last. But there's just something about that classic black & white Game Boy system and its many wonderful games that still keep classic game fans coming back for more.

So to celebrate the 20th Anniversary of the Game Boy system, we at Nintendo Life are going to do 20 classic Game Boy game reviews in 20 days, beginning on the Game Boy system's 20th Anniversary on Friday. We'll be putting up one Game Boy review each day for 20 days.

So tell us what some of your favorite black & white Game Boy titles are. Who knows, we might even pick one of them to review!