Tetris, one of the oldest, most played video game ever. You've played it over a thousand times and still never get bored of it. If you had been living under a rock all this while, a 'Tetris' is when you clear four lines at once. The easiest game on the planet but not everyone is a pro. Brush up your Tetris skills and get going with the game. The game gets faster as you move up levels and you try to form 'tetrii' however faster it gets without getting crashed on the roof.