this Is a laser simulation press b and n to rotate, m for menus,and arrow keys to move the laser. menues additional in formation: 1.variable thickness takes your laser thickness and gradually reduces it until the end of the laser beam.(BTW it doesn't work with a thickness of 1 because its the thinnest and cant get thinner) 2.pen size is the thickness of the laser beam. 3.laser pointer light distance is the distance of the laser beam 4.laser pointer light rotation is how much the laser is rotated