The Level 4 first chase is a lever-based puzzle gated by a timed lock. Pull every lever on the walls and the central block in sequence; once the last lever flips, the door on the left locks and a hole opens behind it (ProGameGuides). Jumping through the locked door costs the run; jumping into the hole is the win condition.
Stamina matters: sprinting drains your bar and walking recovers it, but recovery halts if you stand still (FAQ wiki). In the chase, do not stop to read plaques — sprint short bursts, walk briefly, sprint again.
Bring Bandages. The shared 3-life pool is fragile across chases, and healing during the lever sequence is faster than re-running from Wormy.