Shape Shifter is the best Tetris game ever made, fast and unique. Play with up to 4 shapes in the same arena. This redefines the way you play tetris. Includes over 80 game types and challenges. Play on 3 different scrolling modes and a very cool and interesting level. The most important feature is that you can play with more than one shape in the game arena at a time. This little change really opens up the game play, which allows for a big change