What is a "complete game"?  I was trying to get the "Old School" achievement and was wondering what the game means by this term...complete.  I played it until I couldn't, as far as the pieces piling up but nothing happened.  So, what is it?

Marathon ends on level 15. You have to clear all 15 levels for the chievo.

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GTA4 and Tetris vids
hexic.info

LMAO!  That'll never happen!  Not with me anyway.  THANKS for the info D.A.  I know that you know because I've see your scores on this game.    Too good for me!   

How far can you get?

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GTA4 and Tetris vids
hexic.info