

With wings it is possible to "zig-zag" up and down to dodge the lasers. To avoid this, try to fall as fast as you can, and you can be left unscathed. This is occasionally supplemented by a weaker but much more rapid laser attack that tracks extremely well. Instead, its lasers will progressively fire at a faster rate as it loses health. When it changes into its second form, it will no longer engage in charge attacks. When not charging, Retinazer will always be aligned diagonally with the player, positioned above them. Retinazer does slightly less damage than Spazmatism, but this is offset by its higher accuracy thanks to the speed of the lasers. This is occasionally interrupted by charging attacks, which mirror that of its partner. In its first form, Retinazer will fire lasers at the player at a steady but somewhat slow rate. Additionally, the fight becomes considerably harder if both eyes are on their second form. It is a good idea to focus on one eye, since the fight becomes easier if a single eye has been defeated. When one is destroyed, the other will continue attacking in the same pattern.

Each Eye transforms independently once reduced to 8,000 / 12,000 HP (Retinazer) / 9,200 / 13,800 HP (Spazmatism) the other eye remains in its original form until it is reduced to the appropriate amount. When an Eye is reduced to 40% of their maximum health, it will transform, gaining a slight boost in offense and defense. Retinazer is distinguished by its red iris and lasers, while Spazmatism can be identified by its green iris and cursed flames projectile. They have a combined health of 43,000 / 64,500, shared between them. The Twins, as the name suggests, are two separate monsters, both of which must be defeated. The Twins must be killed before dawn (4:30 a.m.), otherwise they flee and despawn. Use a Mechanical Eye during Hardmode at night.This method will only work if The Twins have yet to be defeated Note that this condition is shared with the rest of the mechanical bosses, which increases as more of the three are defeated. They will then have a 10% chance of appearing when night falls. The Twins can be spawned by fulfilling either of these conditions:
