Tetris Online. Slidris. Version of the Tetris game where there are geometric figures of different shapes and colors and each one composed of 1 or more square blocks. These figures will be generated at the bottom of the screen with each movement you make and will gradually rise up the game board. With the mouse pointer, move the pieces along the same horizontal to fill in the empty spaces. Each horizontal line that you manage to complete disappears and the pieces that are on top will descend one position. In this way, space will be freed on the board, which will facilitate the placement of the new pieces that are generated. The game of Tetris ends when the pieces are stacked on top of each other to prevent the generation of new ones. Accumulate points by keeping the Tetris game active.