Neptunus

Item Icon
Pickup Quote	"Open the floodgates"
Entity ID	5.100.597
Character Appearance
Item Pool	Planetarium
Quality	3
Item Tags
Collection Grid	(page 5, column 12, row 6)

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

Effects

• When Isaac is not firing tears, a charge bar will start to fill up. Holding down the fire button will release all stored tears in rapid succession.
  • The charge time and maximum tears per charge scale with Isaac's tears stat, with higher tears charging faster and having more.

Notes

• While at 0 charge, Isaac fires at his normal tear delay, essentially meaning there is no downside.
• Rapid tapping the fire button will not empty the charge, and can be used as a permanent massive increase to fire rate.
• This item has no observable effect when used as Tainted Lilith or Tainted Forgotten.

Synergies

• Chocolate Milk: Neptunus' passive charge overrides Chocolate Milk's active charge. Tear damage is determined by how charged Neptunus is.
• Kidney Stone: Tear bursts stack, firing a very large number of tears in combination with each other.

Interactions

• Brimstone: Overrides Neptunus.
• C Section: Overrides Neptunus.
• Cursed Eye : Overridden by Neptunus.
• Dr. Fetus: Overrides Neptunus.
• Epic Fetus : Overrides Neptunus.
• The Ludovico Technique : Overrides Neptunus.
• Mom's Knife: Overrides Neptunus.
• Monstro's Lung: Overrides Neptunus.
• Soy Milk : The charge bar is not present and charged tears are released instantly.
• Spirit Sword : Overrides Neptunus.
• Technology : Overrides Neptunus.
• Tech X : Overrides Neptunus.
  • However, Haemolacria + Tech X does work with Neptunus.

Gallery

• 

  Concept art.

Trivia

• Neptunus, as well as Jupiter, was designed for the original Antibirth mod, but never actually implemented until Repentance.

Seeds

PC 9LEW RG2W (Planetarium adjacent to spawn)

PC LCHN M6M8 (Planetarium adjacent to spawn)

PC DBLL Z867 (Planetarium adjacent to spawn)

PC MDVC 7994 (Planetarium adjacent to spawn)

PC Y2Z0 3P70 (Starting item as Eden)

PC SNQP D766 (Planetarium next to spawn, with Lost Contact in a normal room on third floor)

Bugs

Bug!	When combined with both Chocolate Milk and Marked or Soy Milk, Isaac is prevented from firing tears.

The Binding of Isaac: Rebirth
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