Guide:The Twins strategies

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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.

The Twins
The Twins.png
KB Resist100%
Immune toConfused
Coins12 Gold Coin

Spawn Condition[edit | edit source]

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

  • Smash a DemonDemon / Crimson AltarCrimson Altar. They 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 at night.

It must then be defeated before the night ends.

The Fight[edit | edit source]

The Twins, as the name suggests, are two separate monsters, both of which must be defeated. They have a combined health of 43,000 / 64,500, shared between them. Retinazer, distinguished by its red iris and that it fires lasers. Spazmatism, distinguished by its green iris and that it 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 diagonally with the player, positioned above them.

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 unscathed. 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. However, the Cursed Inferno debuff can be very dangerous for its high damage over time and its ability to stop health regeneration. Its charge attacks are faster and more agressive than Retinazer.

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 large 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 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]

This content is transcluded from Guide:Practical Tips § Combat.

  • Starting the battle just after the sun sets (7:30 PM) will provide the maximum amount of time to defeat nocturnal bosses. (Do pause a moment to make sure the night won't be a Blood Moon, or feature another boss spawning.) In Hardmode, the Moon CharmMoon Charm and/or Moon StoneMoon Stone are also useful at night.
  • Prepare your Boss-fighting arena with adequate lighting, CampfiresCampfires and Heart LanternsHeart Lanterns for health regeneration, and Stars in BottlesStars in Bottles for mana regeneration if you use magic.
  • Desktop VersionConsole VersionMobile 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 carry at least one stack of the highest-tier healing potion available (LesserLesser, NormalNormal, GreaterGreater, or Super Healing PotionsSuper Healing PotionsDesktop VersionConsole VersionMobile Version). 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 VersionMobile 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 or King Slime before summoning any harder boss in order to spawn an extra one-use pool of hearts.
  • Remember to use the Sharpening StationSharpening StationDesktop VersionConsole VersionMobile Version, Ammo BoxAmmo BoxDesktop VersionConsole VersionOld-gen console versionMobile Version, Crystal BallCrystal Ball, and Bewitching TableBewitching TableDesktop VersionConsole VersionMobile Version before you go to explore or battle bosses/invasions. These will give class-specific boosts that are useful to take. They give SharpenedSharpenedDesktop VersionConsole VersionMobile Version, Ammo BoxAmmo BoxDesktop VersionConsole VersionOld-gen console versionMobile Version, ClairvoyanceClairvoyance, and BewitchedBewitchedDesktop VersionConsole VersionMobile Version, respectively.

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 VersionMobile 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 VersionMobile 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.
  • You can also use Minecart TrackMinecart Track when building a sky arena to avoid the Twins attack while doing a ton of damage with ranged weapons.

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 armorAdamantite armorAdamantite armorAdamantite armor provides the greatest overall increase to all stats. Melee and ranged users should substitute in a Frost BreastplateFrost Breastplate to increase damage output and defense without sacrificing anything important.
  • Titanium armorTitanium armorTitanium armorTitanium armor is a great choice due to its also high stats and the Shadow DodgeShadow Dodge buff.
  • Orichalcum armorOrichalcum armorOrichalcum armorOrichalcum armor provides very high critical strike chance and its set bonus can hit multiple parts.
  • Palladium armorPalladium armorPalladium armorPalladium armor provides lower stat bonuses, but the Rapid HealingRapid Healing greatly increases natural regeneration.
  • Hallowed armorHallowed armorHallowed armorHallowed armor becomes a great choice if you have already defeated a Mechanical Boss.
  • Spider armorSpider armorDesktop VersionConsole VersionOld-gen console versionMobile Version is the best choice for summoners. However, it is unwise to rely on summons unless you have prepared a large area with background walls to aid the mobility of spider minions.
  • Frost armorFrost armor and Forbidden armorForbidden armorDesktop VersionConsole Version provide weak stat bonuses, but allow you to mix different damage types.

Weapons[edit | edit source]

For Melee users
  • The Shadowflame KnifeShadowflame KnifeDesktop VersionConsole VersionMobile Version shoots very fast and deals a lot of damage per dagger. It also inflicts ShadowflameShadowflameDesktop VersionConsole VersionMobile Version, which deals 15 damage per second, more than any other debuff available. 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 VersionMobile Version with the Yoyo Bag, can be useful.
For Ranged users
For Magic users
  • Sky FractureSky FractureDesktop VersionConsole Version is one of the strongest weapons mages can use in early hardmode.
  • The Meteor StaffMeteor StaffDesktop VersionConsole VersionMobile Version and the Crystal SerpentCrystal SerpentDesktop VersionConsole VersionMobile Version are also very powerful choices.
  • The Spirit FlameSpirit FlameDesktop VersionConsole Version is a highly damaging weapon that is also consistent thanks to its homing properties.
  • The Shadowflame Hex DollShadowflame Hex DollDesktop VersionConsole VersionMobile Version can also be very strong, despite its short range.
  • If you have Crimson, a good idea is the get the Golden ShowerGolden Shower, which is highly effective as it increases the damage greatly thanks to the Ichor debuffIchor debuff, even when not used.
  • It's nice to have a Nimbus RodNimbus Rod, since the clouds can deal a good amount of damage if used properly.
For Summoners Desktop VersionConsole VersionOld-gen console versionMobile Version
  • The Spider StaffSpider Staff is the best summoning choice because the spiders will latch on while they change forms doing hundreds of damage.
  • The Queen Spider StaffQueen Spider Staff also is worth running, as it doesn't count towards your total minions summoned.
  • If a Mechanical Boss has already been defeated, the Ballista CaneBallista Cane 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 some useful extra defense.
  • An EmblemEmblemEmblemEmblemEmblem of your respective class is a must have in Hardmode because of its big damage buffs.
  • If playing in Expert mode, the Shield of CthulhuShield of CthulhuDesktop VersionConsole VersionMobile Version is an incredibly useful item as well, with its dash being great for dodging.
  • The Expert-exclusive Worm ScarfWorm ScarfDesktop VersionConsole VersionMobile Version can greatly reduce damage taken.
  • 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, it can also be used by quickswapping it from the vanity slot, since the effect only applies when consuming a Health Potion.
  • 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, crit chance or defense bonuses. If money is no object (see Guide:Making Money), having all Accessories reforged to Warding, Lucky or Menacing provides an extra 20 defense, 20% crit chance or 20% damage (24%, since the Demon HeartDemon HeartDesktop VersionConsole VersionMobile Version allows you to have 6 accessories).

Potions[edit | edit source]

Miscellaneous[edit | edit source]

  • Because the Twins are vulnerable to many debuffs, melee players can take great advantage of Flasks. The Flask of IchorFlask of Ichor greatly increases the damage output of all weapons, and the Flask of PoisonFlask of Poison, FireFire, and Cursed FlamesCursed Flames can give a very slight increase to DPS. Similarly, the Spider minions can keep them afflicted with Venom, rangers can use Frostburn or other special arrows, and magicians can use a Poison Staff or whatever other weapons they've acquired.
  • The Ice RodIce Rod is useful against Retinazer because the spawned ice blocks can block his lasers.

Specific Strategies[edit | edit source]

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 VersionMobile 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.

Invincibility Machine[edit | edit source]

After beating up the biome mimics, you should have Fetid BaghnakhsFetid BaghnakhsDesktop VersionConsole VersionMobile Version and Daedalus StormbowDaedalus StormbowDesktop VersionConsole VersionMobile Version. With two Target DummyTarget DummyDesktop VersionConsole VersionMobile Versions and a block overhead you can make the invincibility machine. Get a Slimy SaddleSlimy SaddleDesktop VersionConsole VersionOld-gen console versionMobile Version and try to bounce on both dummies while keeping it rapid. After you summon the boss, use the Fetid Baghnakhs to quickly take out Spazmatism. Then use the Daedalus Stormbow to beat Retinazer.