The Intruder

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(in Repentance and Repentance+)

The Intruder is a passive item added in The Binding of Isaac: Repentance.

Effects

  • Gives Isaac a spider familiar that burrows in Isaac's head, firing four slowing tears in addition to Isaac's normal tears.
    • The slowing tears deal 1.5 damage each, and fired every 1.5 seconds.
    • These tears are unaffected by Isaac's damage and tears stats; they have fixed damage and fire rate.
  • Upon taking damage, there is a chance that Isaac's head will pop, spawning friendly spiders, and release the Intruder familiar, who will leap at enemies to deal contact damage, and fires four slowing tears towards nearby enemies instead of Isaac.
    • The spider familiar deals up to 4.5 contact damage depending on how fast it's moving and fires slowing tears twice as fast compared to when it's in Isaac's head.
    • The chance for activation goes up to 100% at 4 luck.
    • The familiar lasts for the current room, and Isaac's head is reattached upon entering a new room.
  • This item belongs to the Spider BabySpider Baby set. Collecting three items from this set will transform Isaac into a humanoid spider.

Notes

  • The Intruder is treated as a familiar even while in Isaac's head, and benefits from familiar synergies while in it.
  • If The Intruder is released after Collectible The Pinking Shears icon.pngThe Pinking Shears are used, control is given back to an invisible head with only a shadow visible. This is due to both the head (the spider) and the body being mobilized to attack.

Synergies

  • Baby-BenderBaby-Bender: The shots are homing even while in Isaac's head.
  • Collectible Box of Friends icon.pngBox of Friends: Doubles the number of tears fired from Isaac's head (if both copies fire at the same time, the tears will stack perfectly so it can be difficult to tell). If The Intruder is released, then interacts normally and spawns a copy.
  • Collectible Hive Mind icon.pngHive Mind: Increases The Intruder's tear and contact damage.
  • Collectible BFFS! icon.pngBFFS!: Increases The Intruder's tear and contact damage. Does not stack with Hive Mind.

Interactions

  • Collectible Guillotine icon.pngGuillotine: The Intruder's tears come from Isaac's body.
  • Character Lilith icon.pngLilith: The Intruder's tears come from Lilith, despite her blindfold.
  • Collectible Sacrificial Altar icon.pngSacrificial Altar: The Intruder can be sacrificed even while in Isaac's head.
  • Collectible Transcendence icon.pngTranscendence: When The Intruder is released, only Isaac's shadow will be visible.

In-game footage

Trivia

  • The Intruder is from the Antibirth mod. In Antibirth, once the item was picked up it could not be rerolled.
  • The spider resembles the spider present in the pilot episode of Hellbenders, a popular flash cartoon and failed candidate for an Adult Swim show. The item itself may be a reference to this episode.

Gallery