Good-bye summer. Hello books (or iPads or Kindles)! Time to go back to school.

Another school is in session: The school of hard-knocks in Tetris Arena. This week, you can teach your opponents a lesson and reap double the rewards with the Speed Up item which is HALF OFF in the Tetris Friends Shop. Double your XP after every match for only 5 Rubies.

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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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Are you an Arena champion? If not, now's the perfect time to practice, and to raise the level of competition, we're offering the Range Up Arena Item for only 2 rubies!

Range Up helps Arena players rank up faster and score big points. Find this and other items on sale at the TETRIS FRIENDS SHOP today!

(Your Arena practice may very well help you succeed in the future...)

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Ready for the deal of the summer? For a limited time, ARENA ARMOR is on sale for only 3 Rubies!!

Don't go into the Arena without the proper protection! Get your Arena Armor from the TETRIS FRIENDS SHOP today!

Want to EARN FREE RUBIES? Click to see all the offers available in your area!

HUGE SALE ON MISSIONS!

There has NEVER been a better time to try TETRIS FRIENDS PREMIUM MISSIONS. They're fun and a great way to put your Tetris skills to the test.

For a limited time, all Premium Missions are on SALE for only 6 Rubies! Click to try a mission and start collecting your BADGES today!

Want to EARN FREE RUBIES? Click to see all the offers available in your area!