Addicted to Tetris? Well, you’re in luck, Tetris Friends is a website that offers fans “7 single-player variants of the game, along with 3 multiplayer games, including this over-the-top 6-player mode.” More information. Continue reading to see a few amazing speed sprints.

Games include Marathon, which requires that you finish all 15 levels to win, Sprint, in which you’ve got to clear 40 lines as quickly as possible, and even an Ice Age movie version where you stack acorns instead of blocks.

[via Technabob]