This is a very simple game. You just edit a picture, and add four pixels to it. I will start with 4 pixels. A 4 pixel square. Any color BUT WHITE. The picture will start 1x500 pixels. Then you keep filling it in line. put a dot in the first, until it is finished, then the second, then the third.
Ex:
Player 1
Player 2
Player 3
Your square must be all one color. Any color but white. Even custom colors Once a row is fill you start a new one. 2 rows more.