Elf Tetris is an interesting skill game on www.flash-games.net for free. The goal for you is to stack the blocks into a row so that clear it. In the game, the piles will appear on the top of the screen, use left, right keys to position it and press up arrow key to change its shape. When a row is fully formed, the blocks will be removed. You should try every effort to avoid the blocks stacking too high to the ceiling, which means that the game is over. The game is very classical. Come on and good luck!