Use 1,2 an 3 to spawn units for the Red Team, and 4,5 and 6 to spawn units for the Blue Team. It can be played solo or multiplayer (as long as your fingers are tiny enough).

(m to mute)

Try to make the conflict as long and as bloody as possible!

Enjoy :)

*update : Now in x2 so you can actually see what you're doing..
-TinyHat