The Spec-Laser 42X is an awesome tower. It has the default four targeting options, with an additional two that are like the Mortar and Dartling; it can target the firstmost, lastmost, closest, or the strongest bloon, and it can also target one specific area and follow the mouse. Besides being this impressive, it also has different modes, which can be set from a submenu: Attack: Fires a red beam that has 25 pierce and pops 1 layer/second. Can pop frozen and lead bloons.