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LOL! Well, it's a fair bit more involved. It's kind of an obvious idea for a game.
Its like saying Ghost Shooter was before Crimsonlands
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While it may be like Ghost Shooter, it's still damn fun. I actually bought this, and it's very entertaining for a dollar. Great party title, too, my friends really got a kick out of it with all four players going.
Be honest, you bought it for the song, didn't you?
I think a game like that is better as a flash game, simply because I'd rather not have to boot up a console to play something so simple.