Guide:The Twins strategies

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The Twins
The Twins.png
KB Resist100%
Immune toConfused

Retinazer Trophy.png "This is going to be a terrible night..." Spazmatism Trophy.png

The Twins are the Hardmode version of the Eye of Cthulhu. They are part of the trio of the mechanical bosses, alongside with The Destroyer and Skeletron Prime.

Spawn Condition[edit | edit source]

The Twins can be spawned by fulfilling any of these conditions:

  • Smash a DemonDemon / Crimson AltarCrimson Altar. It will then have a 10% chance of appearing when night falls. Note that this condition is shared with the rest of the trio, and thus it's not guaranteed if they have yet to be defeated, and will only work if The Twins have yet to be defeated;
  • Use a Mechanical EyeMechanical Eye.

It must then be defeated before the night ends.

The Fight[edit | edit source]

The Twins, as the name suggest, are two separate monsters, both of which must be defeated. They have a combined health of 43,000, shared between them. Retinazer, distinguished by its red iris, fires lasers. Spazmatism, distinguished by its green iris, fires cursed flames.

When reduced to less than half health, they will transform, gaining a slight boost in offense and defense. Only one Eye will transform; both must be reduced to 8,000 and 9,000 respectively for each to transform. When one is destroyed, the other will continue attacking in the same pattern.

It's a good idea to take them out one at a time, because if one dies first, it will be much easier to defeat the other one.

Retinazer[edit | edit source]

In its first form, Retinazer will fire lasers at the player at a steady but somewhat slow rate. This is occasionally interrupted by charging attacks, which mirror that of its partner. Retinazer does slightly less damage than Spazmatism, but this is offset by its higher accuracy thanks to the speed of the lasers. When not charging, Retinazer will always be aligned vertically with the player, positioned above them, which makes its shots easy to block with a solid ceiling.

When it changes into its second form, it will no longer engage in charge attacks. Instead, its lasers will progressively fire at a faster rate as it loses health. This is occasionally supplemented by a weaker but much more rapid laser attack that tracks extremely well. To avoid this, try to fall as fast as you can, and you can be left unscratched. With wings it is possible to "zig-zag" up and down to dodge the lasers. This is made trickier as the fight goes on, with Retinazer using more rapid and fast lasers that are much harder to dodge.

Spazmatism[edit | edit source]

Spazmatism, like Retinazer, varies between firing Cursed Flames from a distance and engaging in charging attacks. The flames do more damage than the lasers, but are not as fast and thus easier to dodge. Spazmatism is always aligned horizontally with the player. The Spazmatizm would continuously shoot Cursed flames at the player every second for about 8 seconds before slowly firing to 10-15 seconds per shot.

Spazmatism's second form changes his attack pattern dramatically compared to Retinazer. Its cursed flame attack becomes a constant stream of flame, which will last for several seconds (and deal big amounts of damage). However, it does not chase the player quite as quickly as it does in its first form, making avoiding the attack somewhat easier. Once it stops spewing flame, it will charge with greatly increased speed, which also does a lot more damage. Dodging these charges is quite difficult. Much like Retinazer, fall as fast as you can while he is charging, and you should be okay. Misdirecting Spazmatism's charges is easier than it sounds; if you jump as he slows down, he will charge over you. This causes Spazmatism to charge at you from either above or below, making him easier to dodge if you just run.

Which to Defeat First[edit | edit source]

The following lists shows Pros and Cons by defeating one of the Twins. Players generally kill Spazmatism first.

Defeating Retinazer first:

Pros: Retinazer has a ranged attack, and defeating this Twin first will assist players who are bad at dodging, afraid of lasers, or have a relatively low movement speed.

Cons: Retinazer has many, many lasers to dodge, and, in addition, if you are a slow player, defeating Retinazer can be the more difficult of the two Twins to fight.

Defeating Spazmatism first:

Pros: Damage from Cursed Inferno can easily add up, so if you defeat him first, you won't have to deal with that for as long. Keeping the Retinazer in its first form can allow you to easily heal to full before killing it.

Cons: Attempting to defeat it as either a slow or melee player (unless you have a melee weapon that shoots a projectile like the Beam Sword or the Ice Sickle) can make dodging the eye fire more difficult.

General Strategies[edit | edit source]

General Tips[edit | edit source]

  • Starting the battle as soon as the sun sets (at 7:30 p.m.) will provide the maximum amount of time to defeat nocturnal bosses.
  • Prepare your Boss-fighting arena with adequate lighting, CampfiresCampfires and Heart LanternsHeart Lanterns for health regeneration, and Star in a BottlesStar in a Bottles for mana regeneration if you use magic.
  • Desktop VersionConsole Version SunflowersSunflowers provide the Happy! buff to players within a 50-tile radius, which grants a +10% movement speed bonus and 17% reduction in enemy spawn rate.
  • Always bring with you at least one stack of LesserLesser, NormalNormal, GreaterGreater or Super Healing PotionsSuper Healing PotionsDesktop VersionConsole Version before doing anything: relying only on natural Health Regeneration is not a good idea.
  • It is suggested to build houses for the DryadDryad and the NurseNurse NPCs in your arena. The former casts the Dryad's BlessingDryad's BlessingDesktop VersionConsole Version buff, which increases your defense and provides you with a thorns-like effect, while the latter can heal and remove debuffs instantly, at the cost of some coinscoins.
  • Bosses are displayed on the Minimap: Follow the boss's icon to track it when you're struggling to find it. You can identify the boss icons by checking their respective wiki pages.
  • Once you have freed the MechanicMechanic in the Dungeon, you can use WireWire to enhance your arena with TrapsTraps and helpful HeartHeart and Star StatuesStar Statues. The former help to damage the enemies, though be careful to set them up correctly in order not to hurt yourself during the battle. The latter will spawn heart and star pickups, respectively. Connect these devices to timerstimers.
  • It may be useful to summon and kill the Eye of Cthulhu before summoning any harder boss in order to spawn an extra one-use pool of hearts.
  • Remember to use the Sharpening StationSharpening StationDesktop VersionConsole Version, Ammo BoxAmmo BoxDesktop VersionConsole VersionOld-gen console versionMobile Version, Crystal BallCrystal Ball and Bewitching TableBewitching TableDesktop VersionConsole Version before you go to Explore or battle Bosses / Invasions. These will give class-specific boosts that are useful to take. They respectively give SharpenedSharpenedDesktop VersionConsole Version, Ammo BoxAmmo BoxDesktop VersionConsole VersionOld-gen console versionMobile Version, ClairvoyanceClairvoyance and BewitchedBewitchedDesktop VersionConsole Version.

Terrain preparation[edit | edit source]

The Sky above the surface is highly recommended for the Twins arena, as vertical movement is required to dodge most of the attacks.

  • A very long Sky Bridge (if possible made out of AsphaltAsphalt or Frozen Slime BlocksFrozen Slime Blocks) is optimal. Continuously running with SpectreSpectre/LightningLightning/Frostspark BootsFrostspark Boots causes both to miss you with their projectiles very often, and keeps each Twin at a stationary horizontal position most of the time, allowing you to fire continuously at it without switching your aim. Wings will help dodge each of the Twins' second phases. Using Asphalt can negate the need for Boots, while using them can allow you to avoid taking damage completely. However, try not to run too fast if you use Boots and Asphalt, as Retinazer may fall behind and despawn. Spazmatism, however, is fast enough to keep up. Regular stone blocks can be used too if you have obtained the Blessed AppleBlessed AppleDesktop VersionConsole Version.
  • The standard Boss arena of several layers of Platforms may be of use, as it allows firing and maneuvering in any direction. A solid ceiling just above your top platform will block Retinazer's beam attacks, as Retinazer always flanks from above.
    • Also, a wall on both sides of a small area can block Spazmatism's cursed fire, but be careful not to run out of time from covering behind the wall. It is helpful to have a one block hole one block up to shoot through. This is more useful if you want to try tanking the boss with the above tip of heart statues. If you can tank the hits with the help of heart statues, you can gun down Retinazer while Spazmatism is only able to charge at you.
  • A safety box in the ground isn't bad either, if you acquired the Daedalus StormbowDaedalus StormbowDesktop VersionConsole Version. That way you could attack Retinazer while its laser can't hurt you in the box. In order to attack Spazmatism make the box one block from the surface and bring Holy ArrowsHoly Arrows, the impact from the stars could hurt it. Stay close to the edge so the Cursed flames can't hurt you.

Gearing up[edit | edit source]

If you already defeated at least one of the Mechanical Bosses, you can explore the Underground Jungle for 20 Life FruitsLife Fruits. These will increase your maximum life to 500, which can help to defeat the rest of the Mechanical Bosses.

Armor[edit | edit source]

Adamantite or Titanium armor are decent choices if the player spends the time needed to mine enough for the full set. If you have beaten The Destroyer and Skeletron Prime already, you should have enough Hallowed BarsHallowed Bars to make Hallowed armor, which is an excellent choice. If you have the patience and/or resources, you can also go for Frost Armor which requires drops from the rare Ice Golems.

Summoners who wish to go after the Optic StaffOptic StaffDesktop VersionConsole VersionOld-gen console versionMobile Version should spend some time grinding for the Spider Armor. The Forbidden armor is a viable option for those split between summons and magic damage, but does not provide enough benefit for a pure summoner build to be worth the effort of grinding Forbidden FragmentForbidden FragmentDesktop Version. If you have beaten one of the other mechanical bosses, the Squire armor paired with one of the accessories dropped by the Ogre will make the encounter much easier.

Weapons[edit | edit source]

For Melee users:

  • The Shadowflame KnifeShadowflame KnifeDesktop VersionConsole Version, paired with full Frost armor, amounts to 11 damage per second in debuffs, in addition to each dagger doing almost 50 damage. The insane fire rate and lack of ammo or mana makes it a good weapon in this battle. If aimed right, it can manage to hit both eyes at the same time.
  • Ice SickleIce Sickle could also be used, as Spazmatism will spend most of the time behind you, so shooting constantly backwards with the piercing projectile will hit him multiple times and deal quite reasonable damage.
    • Alternatively, Light DiscsLight Discs can work too, if you already defeated a Mechanical boss.
  • YoyosYoyosDesktop VersionConsole Version with the Yoyo Bag, can be useful.

For Ranged users:

For Magic users:

  • The Laser RifleLaser Rifle is an effective magic weapon due to its fast firing speed.
  • Cursed FlamesCursed Flames is also a good idea because both Twins are vulnerable to Cursed InfernoCursed Inferno.
  • Crystal StormCrystal Storm is an effective Magic weapon that can be crafted before challenging any of the Hardmode bosses.
  • If you already defeated a Mechanical boss, you can use Unholy TridentUnholy Trident.
  • If you have crimson, a good idea is the get the Golden ShowerGolden Shower, which is highly effective as it increases the damage output greatly, even when not used.
  • Sky FractureSky FractureDesktop Version is also a decent weapon for this fight as it does good, constant damage.
  • The Ice RodIce Rod is useful against Retinazer because the spawned ice blocks will block his beams.

For Summoners:

  • The Spider StaffSpider StaffDesktop VersionConsole VersionOld-gen console versionMobile Version is the best summoning choice because they will latch on while they change forms doing hundreds of damage.
  • The Queen Spider StaffQueen Spider StaffDesktop VersionConsole VersionOld-gen console versionMobile Version also is worth running, as it doesn't count against your total minions summoned.
  • If a Mechanical Boss has been defeated, the Ballista CaneBallista CaneDesktop Version is a powerful choice when facing the Twins.

Accessories[edit | edit source]

Accessories that improve mobility are a must, since the Twins use quick attacks.

  • The Frostspark BootsFrostspark Boots and WingsWings are a must, especially for the Sky Bridge method. They allow the player to dodge, and also allow the player to flee temporarily if health is running low.
  • Even though it doesn't prevent Cursed Inferno, the Ankh ShieldAnkh Shield can still be used to prevent Knockback and for an useful extra defense.
  • The Charm of MythsCharm of Myths provides a helpful boost to newer or slower players taking too much damage by reducing the cooldown of Potion Sickness as well as increasing passive health regeneration.
  • The Cross NecklaceCross Necklace is another good choice, as the frequent charging attacks deal a lot of rapid damage, and the extra period of invulnerability mitigates a significant portion of this damage.
  • The Moon CharmMoon Charm is very helpful if you use Melee, as it will give a minor boost to all stats, raising your defense and therefore survivability, and also giving higher damage.
  • The Magic CuffsMagic Cuffs are helpful if you're using mana consuming items as you will take damage frequently from The Twins.

If possible, reforge all Accessories for damage or defense bonuses. If money is no object (see Guide:Making Money), having all Accessories reforged to Warding or Menacing provides an extra 20 defense or 20% damage.

Potions[edit | edit source]

Miscellaneous[edit | edit source]

Specific Strategies[edit | edit source]

The Gravitation Potion and True Night's Edge Method[edit | edit source]

This strategy cannot be done early on Desktop version Desktop version and Console version Console version versions of the game.

If you are lucky enough to have had a Solar Eclipse happen, you can use a True Night's Edge and a Gravitation Potion to kill the Twins fairly easily with as little as Cobalt or Mythril armor as you will take nearly no damage. You may need to use two or three Gravitation Potions as the fight may take a while. To speed things up you may like to use the melee set of your chosen armor.

Close-ranged Unicorn Strategy[edit | edit source]

A strategy that is helpful for Melee players is a Skybridge using a Blessed Apple and any kind of yoyo (A Yoyo Bag is recommended). Running with the Unicorn and shooting the yoyo behind you will deal a lot of damage and you won't get hit very much as the unicorn is slightly faster. Warning: Using this strategy may lead to the The Twins despawning if you go too fast.

Sentry Farming[edit | edit source]

After gaining access to the Tier 2 equipment sold by the Tavernkeep, the fight becomes much easier to do. Wearing the Squire armor and using the Ballista Cane will give the best results because of the high defense and health regeneration provided by the armor, as well as the Ballista Panic! buff doubling the firing rate. Acquiring one of the accessories dropped by the Ogre is recommended for this method. When building your arena, be sure to use platforms whenever possible to maximize the opportunities your Ballistas have to fire. Make sure that you have Heart Lanterns and Campfires set up to give yourself the most health regeneration. Having a good pair of Wings, the Cobalt ShieldCobalt Shield or its upgrades, and the Lightning BootsLightning Boots or Frostspark BootsFrostspark Boots are recommended for maximum mobility. The Summoner EmblemSummoner EmblemDesktop VersionConsole Version will make the fight go much faster, rounding out your accessories. A few Greater Healing PotionGreater Healing Potion are all the healing you'll need in case you get backed into a tight spot. Once the Twins have been summoned in, simply kite them around your Ballistas, taking damage periodically, preferably from Retinazer's laser for minimal damage. With the best Modifiers on your gear and all the relevant buffs, the Twins will go down in two to three minutes. If you find yourself taking too much damage and needing to heal more, consider swapping out the Summoner Emblem with a Charm of MythsCharm of Myths so you can heal more often.

Other Tips[edit | edit source]

  • Both eyes, while not charging to attack the player, stay in specific position relative to the player. And weapons such as Nimbus Rod are very useful, if combined with good tanking armor. The positions are:
    • Retinazer's first form will stay in either diagonally to the East or West from the player while not charging attack.
    • Retinazer's second form will stay directly above the player while normal attack.
    • Retinazer's second form rapid attack will stay at the east/west to the player, slightly moving vertically.
    • Spazmatism, in both forms will stay horizontally to the east or west of the player at normal attack.
  • If you have access to multiplayer with two players in the same room, both player can take aggro of different Twins, separate them and fight them individually.
  • You can easily block their attacks with blocks, and by also attacking with a Yoyo.