Repentance · familiar · #268

Rotten Baby

A familiar that generates blue flies while Isaac fires.

Typefamiliar
Quality3
Listed pools6
UnlockNo linked achievement ID

In-game pickup line

“Infested friend”

Mechanics

What Rotten Baby does

  • Produces friendly flies during combat instead of shooting a normal tear stream.
  • The flies seek enemies and can benefit from fly-damage upgrades.

In a run

Practical note

Pair it with Hive Mind or Fish Tail to improve the flies it supplies.

Reference

Game data and sources

The item ID, quality and pool listings, icon, game-file tags, and short pickup line come from the extracted Repentance files. This effect explanation is an editorial summary checked against the references below. Repentance+ can differ.