In Mouse Megatron you play as a giant Mecha, or mobile suit. A transmission goes out to you that the city needs help and only you can defeat all the monsters. To move your character around you will have to shake the mouse rapidly. If you want to change direction you can either left click or hit the spacebar. To damage the enemies ram your character into the monsters. The faster you are moving the harder you ram and the more damage the enemies take. When you hit an enemy they will drop green crystals be sure to pick them up as they help regenerate any life you have lost.