In-game pickup line
“The ground below feels hollow...”
Mechanics
What Stud Finder does
- Each destroyed rock has a small chance to reveal a crawlspace entrance.
- The chance is 0.5% per rock, so any one bomb or rock-breaking attack is unlikely to produce one.
Achievement #230
How to unlock it
Complete challenge #27 (BRAINS!).
Unlocking an item and finding it during a run are separate steps.
Browse challenge rewardsIn a run
Practical note
Break groups of rocks you would already clear, rather than spending every bomb chasing a rare entrance.
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.
