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Third and final mechanica boss: The Twins
Terraria

Third and final mechanica boss: The Twins

Master the challenging Twins boss fight in Terraria. Learn their stats, weaknesses, phases, and optimal strategies to claim victory and valuable loot.

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Master the challenging Twins boss fight in Terraria. Learn their stats, weaknesses, phases, and optimal strategies to claim victory and valuable loot.

Stats / Weaknesses:

  • Retinazer (1st Form): HP: 20,000/30,000 (Expert: 30,000/45,000). Damage: 45/76 (melee), 40/76 (laser). Defense: 10/10. Weakness: Ichor.
  • Retinazer (2nd Form): HP: 8,000/12,000 (Expert: 12,000/18,000). Damage: 67/113 (melee), 50/92 (laser), 36/68 (rapid laser). Defense: 20/20.
  • Spazmatism (1st Form): HP: 23,000/34,500 (Expert: 34,500/51,750). Damage: 50/85 (melee), 50/88 (cursed flame). Defense: 10/10. Weakness: Ichor.
  • Spazmatism (2nd Form): HP: 9,200/13,800 (Expert: 13,800/20,700). Damage: 75/127 (melee), 60/108 (eye fire). Defense: 28/28.

Phases:

  1. First Form: Both Retinazer and Spazmatism have lower stats and distinct attack patterns. Retinazer fires lasers and occasionally charges. Spazmatism spews cursed flames and charges.
  2. Second Form: Upon reaching specific HP thresholds, both Twins transform, gaining increased stats and more aggressive attack patterns. Retinazer fires lasers more rapidly. Spazmatism uses powerful charging attacks and streams of fire.

Strategy:

  • Build a very long runway in the Underworld, ideally lined with Sunflowers and Honey for buffs. Campfires and Heart Lanterns are also beneficial.
  • Prioritize killing Retinazer first due to its more predictable laser attacks, which are easier to avoid and less dangerous with a Cross Necklace. Apply Ichor to Retinazer to speed up its defeat.
  • Once Retinazer is down, focus all attention on Spazmatism. Its cursed flames and charging attacks are highly dangerous.
  • In Expert Mode, Retinazer's lasers fire faster, and its charges become more potent. Spazmatism inflicts Cursed Inferno for longer durations and charges more frequently.

Drops:

  • Normal Mode: Coins (12g), Souls of Light (20-40, 100%), Greater Healing Potions (5-15, 100%), Hallowed Bars (15-30, 100%), Twin Mask (14.29%), Retinazer Trophy (10%), Spazmatism Trophy (10%).
  • Expert Mode: Coins (30g), Mechanical Wheel piece (100%).
  • Master Mode: Pair of Eyeballs (25%), Twins Relic (100%).

Souls of Sight, dropped by The Twins, are used to craft powerful items like the Fairy Bell, Magical Harp, Optic Staff, and Rainbow Rod.

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