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Fire Imp
Fire Imp.pngOld-gen console version and Nintendo 3DS version
Classic mode icon.png Classic
Expert mode icon.png Expert
Master mode icon.png Master
AI TypeCaster AI
Max Life70/140154/210231
KB Resist50%/55%/60%
BannerFire Imp BannerFire Imp Banner
Immune toOn Fire!ConfusedHellfire
Coins350Pre-Hardmode: 875Hardmode: 7

The Fire Imp is a caster enemy found only in the The Underworld. It fires Burning Spheres, which travel through blocks and have a 33.33*1/3 (33.33%) chance to inflict the On Fire! debuff. The Burning Spheres can easily be destroyed by hitting them with any weapon, minion, or damage-dealing tool or pet.

Like all casters, the Fire Imp will follow the pattern of firing three times, pausing for several seconds, and teleporting to another location on the screen.


  • Fire Imps require a target space of at least four vertical air spaces and three horizontal air spaces to teleport into a location. Despite this, they only need three vertical air spaces and two horizontal ones to spawn.
  • Fire Imps spawn more frequently as long as there are less than four other enemies on the screen.


  • The Fire Imp can be stunlocked with many different minions, as their repeated attacks prevent it from firing.


  • The Fire Imps dropping the Plumber's Hat may be a reference to Mario's ability to shoot fireballs when getting a Fire Flower power-up, similar to the Burning Spheres that Fire Imps shoot. This is further supported by the Obsidian Rose that they drop, which references the Fire Flower power-up.
  • Fire Imps could originally drop a Green Cap in the Mobile version Mobile version. Since an unknown update, this is no longer the case.
  • The Slice of Hell Cake's description implies that their teleportation ability is not innate and must be learned.
  • The BestiaryBestiary entry for the Fire Imp: "A lesser demon imbued with hell magic. Capable of teleporting and hurling phantom fireballs towards their foes."

See also[]

  • Imp Staff, which summons a Flying Imp minion resembling the Fire Imp
  • Slice of Hell Cake, which summons a Baby Imp pet resembling the Fire Imp


  • Desktop 1.0.5:
    • A longer delay was added between the 3-shot volley and the next teleport.
    • Fire Imps are no longer damaged by lava.