Add some extra fun to Marathon with the Tetra-Memory mission!

As you clear lines in Marathon, you'll flip over cards on that row. If you can match up all the cards in a single game, you win the mission and a cool badge! >Play the TETRA-MEMORY mission now for only 4 rubies!

Missions are only for registered users. If you haven't started a Tetris Friends account yet, SIGN UP NOW! It's FREE

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