Yeah, you should've tried the demo first. It was the kiddy version, and you could've saved yourself your money. What you can do though, it exchange the game for an unopened copy of it, say it's defected or something, then take it to another store and return it.

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"Yeah, hit squad is in the house! All right baby! 60 minutes, balls out.
Let's open up the whole can of kick ass and kill 'em all!
Let the paramedics sort 'em out!"
Alvin Mack from The Program