About UnTetris GameUnTetris is a 25-stage shape decomposition game. Select the Tetris pieces from the perimeter and drag them into the puzzle to remove the pieces they overlay. Repeat the process until the puzzle has been cleared. Some Tetris pieces are not oriented correctly and need you to tap on the circle arrow beneath them to rotate them clockwise some number of times before dragging them into position. If you make a mistake you can use the buttons in the upper right corner to undo a move or restart the level. This is a JavaScript web application which uses cross-platform mobile-friendly HTML. All modern web browsers like Microsoft Edge, Apple Safari, Google Chrome, Mozilla Firefox and Opera should support it. This game works on just about any type of computing device including Microsoft Windows desktop computers, Apple OSX Mac computers, iOS powered tablets and phones like the iPad and iPhone, laptops like the Google Chromebook, and the many types of mobile phones from manufacturers like Samsung which are powered by Google Android.