During game, press pause to pause and double press pause to play. Drag and drop tanks and artillery. Shooting is automatic. Destroy the enemy house to win (the house is located at the bottom right corner of the layout. Press the "-" or scroll out to zoom out & press "+" or scroll in to zoom in. Everything else is provided off of the menu, but if not, you should basically just click icons to build. HINT: Be shifty ;)