In-game pickup line
“Wealth of flies”
Mechanics
What Rotten Penny does
- Each collected coin adds a friendly fly.
- The flies can attack enemies and benefit from fly-focused synergies.
Achievement #388
How to unlock it
Have 20 Blue Flies at once.
Unlocking an item and finding it during a run are separate steps.
Explore more unlocksIn a run
Practical note
Save coins on the floor until just before a hard room if you want to enter with more flies.
Reference
Game data and sources
The trinket ID, 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.
