Ring Worm

Ring Worm is a trinket.

Effects

 * Isaac's tears travel in a high-speed spiral pattern.

Interactions

 * Brimstone: No effect.
 * Mom's Knife: No effect.
 * Monstro's Lung: Tears spin as a cluster, making it difficult to hit enemies.
 * Technology: No effect.
 * Tiny Planet: Tears spin uncontrollably fast, making it incredibly difficult to aim.
 * Dead Onion: Tears move very fast, negating the slow speed and poor range.
 * The Ludovico Technique: The tear moves uncontrollably, making it rather difficult to hit enemies.

Trivia

 * The shot pattern might be a reference to NES Uncle Fester's Quest power-up.
 * Ring worm is a fungal infection very common in children and adolescents. It involves scaly rings on the skin of the scalp, chest, arms, stomach and other places. It gets its name not from being caused by a worm, but from its ringed pattern the infection causes.