In Tetris, you can rotate your piece clockwise and counter-clockwise.

In Stack It, if I'm not mistaken, you may only rotate counter-clockwise with the Up key.

Rotating in BOTH directions is needed and crucial for high-level play, and since this is only a competitive multiplayer game, it is a necessity.

May I intruduce "Twists". The L, J, and T tetrominoes are the beneficiaries to this technique. These twists, also specifically called "L, J, and T Spins," allow these tetrominoes to enter gaps that would not be possible without rotating in BOTH directions. http://kitaru.1101b.com/TGMGUIDE/12.htm Demonstrates this.

http://tetris.wikia.com/wiki/Twists Also a full article on twists.

Currently the only way to do a clockwise twist would be a 270 degree counter-clockwise rotation, which is sometimes (MOST LIKELY) not possible in the block setup.

Another reason to add clockwise rotation is that 3 key presses, not only being impossible to perform in situations, takes far longer than just a tap of a clockwise button, which, in a competitive environment where you aim to take control of the next piece, is very important.

I propose to add controls for clockwise and counter-clockwise rotating to the X and Z keys, respectively, where a player's thumb would rest on the spacebar for the hard drop, with their index and middle on Z and X.