Wrong Way!

Monster(s): Zombie (guns); Ghouls (knife, guns); Nightmare (guns)

Saving Zone(s): 2
Near NE corner
Near SW corner

Ladder(s): 7
Five near center: 4 down to Welcome, Tasty Primate!; 1 up to Ground Floor
1 NW ladder: down to Welcome, Tasty Primate!
1 SE ladder: down to Welcome, Tasty Primate!

Objectives:
Orange Crystal: S locked room right by the central lounge
Clear Blue Healing Potion: W corridor/locked room of the central lounge

Problem(s): Locked Silver doors.
Solution(s): The Silver Key in the level below