Defend your factory from the attacking robots by firing the right coloured missiles! Drag your mouse in the direction of the colour indicated to launch a particular colour of missile. Example: Drag your mouse from left to right and downwards to launch a red missile and from right to left and downwards to launch a yellow missile. Have fun!
Fire red missiles - Drag the mouse in a down-right direction. Fire yellow missiles - Drag the mouse in a down-left direction. Fire blue missiles - Drag the mouse in a up-right direction.