Infestation

Infestation is a passive item.

Effects

 * 1-3 Blue Flies randomly spawn whenever Isaac takes damage.
 * 2-6 Blue Flies randomly spawn whenever Isaac takes damage.

Interactions

 * Fish Tail: Doubles number of flies spawned.
 * : Flies are bigger and deal double damage.

Trivia

 * Prior to Repentance, this item's description was "They grow inside".

Seeds
8H3N AE8H (Treasure Room adjacent to spawn) CW0L S1LN (Treasure Room in one room above the spawn) 33QM WGYC (Treasure Room in one room above the spawn) QZ8P 4BQF (Treasure Room adjacent to spawn) 2VP2 JVWH (Treasure Room two rooms above spawn) SAPZ YHX0 (First floor treasure room) LBXS W367 (Treasure Room adjacent to spawn)