The catacombs are structured like a vertical puzzle: each lever controls a specific gate, and pulling the right one at the right time opens the path forward. The game designers placed the levers in visually distinct niches—sometimes behind debris, sometimes on a crumbling wall—so keen eyes can spot them. Recognizing the pattern of placement helps you predict where the next lever will be, reducing back‑tracking.
Because the levers are tied to progression, they also serve as checkpoints. Once a lever is activated, its gate stays open for the remainder of the run, allowing you to revisit earlier sections without re‑solving the same challenge. This mechanic encourages careful exploration early on, rewarding thoroughness with smoother traversal later.