Wavy Cap

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Wavy   Cap
Item icon
Item altar
"Tears up. A mind changing experience!"
Table dividing line 1.png
Item ID
5.100.582
Table dividing line 2.png
Recharge Time
0.5 seconds 0.5 seconds
Item Pool
Normal and hard modes only Secret Room Secret Room
Table dividing line 3.png
Collection Grid
(page 5, column 18, row 5)
Added in Repentance

Wavy Cap is an activated item added in The Binding of Isaac: Repentance.

Effects[edit | edit source]

  • Gives Isaac a flat +0.75 fire rate even past the normal cap, -0.03 speed and distorts the screen and background music. The effects can be stacked in the same room, and the distortion becomes more pronounced with repeated use.
    • Each use increases the recharge time, with the 9th use having a recharge time of 15 seconds. After the 10th use, it no longer recharges automatically though it can be recharged and used even more through batteries.
    • Leaving the room doubles the speed penalty and multiplies the fire rate bonus by x0.4, for the uses in that room.
    • Clearing a room removes one use's worth of penalties and bonuses, giving +0.06 speed and -0.3 fire rate.
    • Isaac's costume will change the stronger the Item's effects get.
  • This item belongs to the Fun Guy set. Collecting three items from this set will transform Isaac into a walking mushroom.

In-game Footage[edit | edit source]

Trivia[edit | edit source]

  • Since the fire rate increase is flat, it is technically possible to reach 120.0 with enough uses. In practice this will likely render the game unplayable due to distortion.
  • This item originated from Antibirth and was called Black Mushroom.


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