Tunneling Codex
Quick Answer: Tunneling Codex
Tunneling Codex is a utility Trinket in Mina the Hollower. It lets Mina hold Jump to burrow repeatedly without needing to land, making movement, water sections, and cleanup routes much smoother.
Tunneling Codex is earned from the Ring Dive Parlor mini-game in Sandfalls. Reach 5,000 points in the Ring Diver mini-game to claim the Trinket.
Trinket Details
- Effect: Hold Jump to burrow repeatedly without needing to land.
- Location: Sandfalls.
- How to Get: Score 5,000 points in the Ring Dive Parlor / Ring Diver mini-game.
- Category: Utility.
- Slot Cost: 1 Trinket slot.
Is Tunneling Codex Worth Using?
Tunneling Codex is worth using if you rely on burrow movement, want smoother traversal, or are revisiting areas during cleanup. Repeated burrowing without needing to land can make movement-heavy routes much easier.
It is less useful if you only care about direct damage or passive defense, but for exploration and 100% cleanup it is one of the better utility options.
Best Uses for Tunneling Codex
- Repeated burrow movement without needing to land.
- Water or traversal-heavy sections where movement control matters.
- Cleanup routes where revisiting rooms quickly is important.
- Players who prefer movement utility over raw damage.
- Pairing with checklist-style completion runs.
Tunneling Codex and 100% Cleanup
Tunneling Codex is useful during 100% cleanup because it makes movement and repeated traversal less annoying. If you are checking missing Trinkets, revisiting old rooms, or cleaning up hidden routes, this Trinket can save time.
If Tunneling Codex is missing from your collection, check the Ring Dive Parlor in Sandfalls and compare your save against the All Trinket Locations checklist.