Atari Anniversary Advance for Nintendo Game Boy Advance
This six-pack of classic Atari arcade games for the GBA includes what they call "meta-emulations" of the originals. Whatever that means -- the games are pretty excellent conversions of Asteroids, Battlezone, Centipede, Missile Command, Super Breakout, and Tempest. The developer even included modes for Super Breakout, Centipede, and Tempest to reproduce the vertical monitor on the GBA -- by pressing a specific button, the image will rotate 90 degrees, giving the games a more accurate arcade representation. You just have to play with the GBA tipped on its side.