Falling Blocks is a classic puzzle video game. Players control colored blocks that randomly fall in different shapes (L, T, O, I, S, Z, and J, known as tetrominoes). The goal is to completely fill the bottom of the screen by rotating and sliding the blocks. When a full horizontal row is filled, that row is cleared, increasing the score. If the screen fills up as the blocks begin to stack, the game ends. Strategy is based on filling gaps and creating long chains of clears.