CheatCodes.com has all the official Tetris Battle Facebook cheats to unlock everything. If you know of any that we don't have, please let us know.
All published and official codes as of Wednesday June 19, 2013 for Tetris Battle are shown below.
When you are playing in two player "Battle Mode", the single lines aren't worth as much as any other multiple lines, unless you make a single line as part of a combo of lines (Where you remove a line twice in a row or more). You can win more easily on single-player battle mode by concentrate fully on going for quadruple lines. Even if your stack gets a little high at times while you're waiting for the long and thin piece, it's worth it to send massive amounts of grey lines into your opponent's stack.
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