Summary: Space Invaders, if you don't know it, chances are good you're not a gamer. This version does an excellent job of making the game fun and relevant to more modern sensibilities. Fast-paced, with balanced power ups and variable difficulty, just turn of the silly motion backgrounds. Pick this up if you have a PSP lying around!
Summary: Space Invaders Extreme is a must buy for arcade fans, old school gamers, or just old gamers. It will challenge even veteran gamers on their reflexes and tactics to approaching which powerups to get, and how to survive. I am a hardcore gamer, and when I heard about this game I dismissed it simply as "another remake" but after researching it, and actually buying it, I stand corrected.
Summary: Its one of those games that when you die you say "well let me play just one more game" and before you know it its time to get up and go to work. Its not an "emulator", they actually re-made it, with colorful backgrounds, cool sound effects, and killer addiction. Its simple and easy to pick up and play, perfect for casual gamers who just want to shoot aliens for a while.
Summary: Youthful memories abound when this little gun turret zooms from side to side dodging bombs and missiles, I remember playing the Atari version and actually recorded it for to be used for backing track in a disco, cannot repeat what chap on table in front of me said as I didn't lose a life.