The Processing Wing is where materials were shipped from and received into the ocean base. Grey-blue and metallic, the area is based around a hangar with The Shuttle standing in its centre, with game rooms accessible from floor level and a gantry around the wall.

The undersea level is a dark, corroded area underneath the main facility - the Industrial Zone's muckiest games are down here, often using tanks of murkier slime that contrasts with the bright, smooth gunge in the other areas. Entrance is via a small hatch and stairs descending into the dark room with the Treatment Pool, or down a rusty lift into the room that houses the Sludgecube.