Tetris Unblocked: Classic Puzzle Game Rules Tetris Unblocked is an unrestrictive version of the classic puzzle game, Tetris. In Tetris, players are tasked with arranging falling Tetriminos (geometric shapes) to create complete horizontal lines without any gaps. The game is renowned for its simple yet challenging gameplay. As the Tetriminos descend, players must rotate and position them to fill rows completely. When a row is filled, it