Watch it in action
🕳️ How it works
- The Center Tunnel is a square device with a number showing how many boxes are still stored inside.
- Drop a box touching it from top, bottom, left, or right to release one stored box and decrease the number by 1.
- Once it hits 0 the Center Tunnel disappears, opening blocked paths and making the area easier to read.
- Unlike a regular tunnel, it triggers from multiple sides — more freedom, but more accidental releases.
Pro tip
The best trigger is a box that helps your bottom boxes and lowers the tunnel number at the same time — two jobs, one tap. When the number shows 2, do not burn both triggers back-to-back: drop one, watch the result, then decide on the second. Clear it early when it blocks the main path and the belt has room; otherwise wait.
