Wavy Cap

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

Effects

 * Gives Isaac a flat +0.75 tears 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. After repeated uses, the colors begin to turn very bright and intense.
 * Each use increases the recharge time, which starts at 0.5 seconds with the 1st use, and ends with 15 seconds on the 9th use. 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 tears 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 tears.
 * Isaac's costume will change the stronger the Item's effects get.

Synergies

 * : The distortion effect will wear off eventually, but the highest reached tears bonus won't. However, Wavy Cap will no longer have any positive effects until an even higher bonus is reached.

Trivia

 * Since the fire rate increase is flat, it is technically possible to reach the hard cap of 120.0 with enough uses. In practice this renders the game unplayable due to distortion.
 * On final stages of the distortion, the wave effect will make appear parts of the top of the screen on the lower screen and the lower screen on top of the screen, while bright colors dance on the screen, similar to how psychedelic trips are described.
 * This item originated from Antibirth and was called Black Mushroom.
 * Wavy Cap, also known as Psilocybe cyanescens, is a species of potent psychedelic mushroom.