Lasers are grey and resemble a cannon, having a hemispherical base and a short cylinder coming off the top of this base. The laser fires a white laser with light blue edges, this laser impacting the floor and causing a minor explosion.
Lasers kills blots when the blot impacts the laser. Lasers can be blocked by drawing a line in front of the laser beam. However, when the line disappears, the laser will break through. Therefore, the player must make sure that the line blocking the laser is not disappearing when guiding blots under a laser. Lasers can be found shooting a laser vertically or horizontally in the game, but never diagonally.