Irradiated Lead

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Irradiated Lead
Irradiated Lead.png
Type: Passive
Quality: B Quality Item.png
Sell Creep Price: 30 Money.png
Ammonomicon Entry
Poison Shot
These irradiated slugs have a chance to poison any target they touch.

A favorite of the Resourceful Rat.

Irradiated Lead is a passive item and a bullet upgrade.


  • Adds a chance to fire green bullets that poison enemies, dealing 3 damage per second for 2.5 seconds.
    • The chance of poisoning enemies is 50% for projectile guns, 25% per second for beam weapons and 100% for exploding weapons.


  • Synergy.png Added Effect - Poison - If the player has Alpha Bullet, the first shot of each magazine is guaranteed to be a poison bullet.
  • Synergy.png Beta Ray - Gamma Ray's beam grows larger and deals more damage, but no longer travels instantaneously.
  • Synergy.png Emerald Weapon - If the player has Omega Bullets, the last shot of each magazine is guaranteed to be a poison bullet.
  • Synergy.png Natural Selection - If the player also has Evolver, it evolves after every 3 unique enemy types killed instead of 5.
  • Synergy.png Pandemic Pistol - If the player has Plague Pistol, its bullets bounce and are connected with electricity.
  • Every explosive weapon may occasionally leave a small pool of poison goop on the floor.


  • Emerald Weapon is a reference to Final Fantasy VII, specifically one of its Super Bosses.
  • Lead is formed as polonium undergoes atomic decay until it achieves almost total non-radioactivity. While lead still retains enough radioactive particles to be detected by geiger counter, lead cannot be made dangerously radioactive again.

See also