Simplicity
Space Invaders. You shoot at aliens. That's it. It never pretends to be anything more than what it is, and any fan knows what to expect.
Some nice extras, not my cup of tea, but I can understand why people would like it.
Check it out, for that price, it's worth a gamble.

unexpectedly fun
really...the only reason i bought this game was cause it's cheap. i suppose first impressions can be misleading. when i started playing this game, it was just an ok game i can enjoy. but after a few days i find myself playing this game over and over again. yes, it's a game that grows on you, getting higher scores becomes an addiction. if u like the classic shooting genres, you'll like this game.

Space Invaders
Once again Play-asia does an great job of getting my item to me. The game has a learning curve to it, since you cant read the manual, it takes some time to figure out what to do on Future Mode, but nevertheless its fun to look at and play, but does get old after a little while, but for the $12.90 you cant go wrong.

Why is this in the cheap bin?
I think this is quite the entertaining game if you are a fan of the series. Must say for 16 bucks shipped to the USA is a steal. Good candidate for import.

Great game for the price!
For those of us waiting until Tetsuya Mizuguchi's Every Extend Extra, the retro flavored funky beats in this galaxy will be sure to keep you entertained until Q's game comes out. Theres alot going on in this game with the vintage version of Invaders, Galaxy Beat and multiplayer modes as well. Plus almost all the games in english! If you're collecting PSP games or if your fixing for a musical shooting game, I highly recommend this game.