You are the Red team.
To move, click on a unit, and then click on a green square.
To fire, move next to another unit, choose fire form the menu, then click on them (they'll have a red square behind them).
To capture a building, move a walking unit onto it and choose 'capture'.
To teleport new units onto the board, capture a tellypawta, then click on it and choose a unit.
Capture buildings to earn power, and use the power to tellypawt better units.
To win, either capture the opponent's base, or kill all his units.