Basis: Galaga, a shoot 'em up, was a super hit in the arcades back in the 1980's
Gameplay: Very simple, straightforward.
Graphics: Shoddy.
Story: Dude, this game was made in the 80's
Sound: Hit 'mute'
Enjoyability: I'm a huge shoot 'em up fan, and I didn't really enjoy this game.
Bottom Line: Yeah, it's a classic, but that doesn't mean its a good game today. Save your money.