The womans, kids, and old people of your town trust in you. Defend them from the enemies throwing arrows at them with your bow. Move with A,D,W, aim and shoot with the mouse.
The ultimate robot battle has begun. Don't stop shooting until kill 'Em all. The first level is easy and it will help you as training for the rest of the game.
Choose your character and prepare yourself to fight. Your objective is to eliminate the enemy boss at the end of each level. Run with the arrows. Jump with S and attack pressing D.