Sirtet
Description: Try to form tetrads (four-piece groups) out of the falling pieces in this action puzzle game. But remember - only four pieces per group!
Instructions: Click with mouse on Start to begin the game. Make tetrads to destroy them. If you create gray blocks, destroy tetrads next to them to erode them.
Controls: Down: Move Piece Left, Right: Move Piece Left, fire: na, M: Move Piece Left, jump: na, P: Move Piece Left, S: Move Piece Left, R: Move Piece Left, Left: Move Piece Left, movement: arrow