Use WAD to control the Red Cube and use S to attack with Red Cube. Use the arrow keys left arrow, right arrow and up arrow to control the Blue Cube and use the down arrow to attack with the Blue Cube, hold w to fly :]
I made this by myself, this took a lot of work and effort so please don't criticize much. This one of my first projects i made so don't expect much There is a glitch where u move and I sort of made a dodge move so whatever.