Enter the Gungeon Wiki
Type: Passive
Quality: A Quality Item.png
Sell Creep Price: 41 Money.png
Unlock Method: Play more than 6 runs after the release of A Farewell To Arms.
Introduced in: AFTA Indicator.png
Ammonomicon Entry
The Way Of Guns
Transforms into a powerful weapon under mysterious circumstances.

This Bullet Sprite will transform into an enormously powerful radiant energy weapon under certain circumstances. Traditionally, this means showing proficiency in bridge delivery and maintenance. If no bridge is available, however, it will take less important things like courage or determination into consideration.

Sprun is a passive item added in A Farewell to Arms update.


  • Stays near the player and will block bullets, but does not orbit like guon stones.
  • Upon being picked up, it assigns a trigger randomly from the list of triggers (see below).
  • Upon satisfying the trigger, it awards the player Windgunner for a short period.


  • Player uses their last blank.
  • Player takes damage to hearts.
    • If playing as the Robot, taking armor damage also counts.
  • Player loses their last piece of armor.
  • Player goes down to half a heart.
  • Player's gun runs out of ammo.
  • Player is set on fire.
  • Player takes damage from electrocution or poison.
  • Player falls into a pit.
  • Player flips a table.
  • Player uses an active item.


  • Sprun can trigger even while in a Blessed Run.
  • If Sprun's trigger is falling into a pit, entering the Oubliette may trigger Sprun until the player falls into a pit again.
  • Even if the player has fire immunity, Sprun can activate when standing inside of it.
    • This does not apply to the poison/electrocution trigger, as the player must take damage.
    • Sprun will not activate if the player has fire immunity through flight.
  • Saving can reset the trigger to something else.
  • With Metronome, receiving and losing Windgunner does not reset the damage bonus.
  • On console versions, dropping Sprun and letting the Resourceful Rat steal it while having Windgunner will let the player keep Windgunner.
    • Saving and exiting with Windgunner will remove it from the player's inventory.
    • Dying and respawning with Clone will let the player keep Windgunner.
    • If attempting to do this on PC while in co-op with The Paradox, it can cause the game to remove all guns, soft locking the game.
  • Trying to play Winchester's game while Windgunner is active will softlock the game.
  • If the trigger is falling into a pit, the player can jump into the pit left by the elevator and get the ability for no damage.
  • If the trigger is using an active item, Windgunner can be used infinitely if the player has Jetpack, Grappling Hook, or any other item that has no cooldown time.
  • If the trigger is using the last blank, Elder Blank cannot be used to activate Windgunner.
  • While playing as The Robot, if the trigger is to be brought down to your last heart, Sprun will never activate and is effectively useless.


  • UnusedSynergy.png Unused: - If the player has Excaliber, Sprun will gain two triggers instead of one.
    • Despite being scrapped, Sprun will always assign a secondary trigger for this unused synergy.
  • This is a reference to Spren in the Stormlight Archive, the first book being The Way of Kings. Spren are required to become a radiant, one of which is a Windrunner. The protagonist, Kaladin, is forced to carry bridges and is also a Windrunner. The item also resembles a Lifespren.
  • While the glitch that takes place when the Sprun is dropped is likely unintentional, it bears a resemblance to the way the bonds between Radiants and Spren work in the Stormlight Archive.