VBGamer

Yes, David is right. I meant that Tetris isn't super complicated but it does use simple collision detection for the pieces :) Basically I use an array of booleans that represent the board. When you move a piece it makes a check to the booleans to see if you're allowed to move the piece or not. It's pretty simple and avoids any real math. I'de be glad to send you a copy (although I am sure there are better examples then mine on how to do Tetris in VB).