Sheep Cannon - Sheep shearing boring? Try the Sheep Cannon! Sheep Cannon is very simple to play. Just aim the cannon using your mouse and fire! The left bar on the screen indicates the power of your shot. How far can you go? Try to beat all achievements and buy the upgrades! Mouse = Aim and fire. WASD = Sheep movement. Left Mouse Button = Punch (when available). Q,E = Use power-ups.