Security Hall

Security Hall is the eight stage in the Dark storyline of Sonic Adventure 2 and the third stage playable with Rouge. It represents Rouge's attempt to find three Chaos Emeralds hidden inside GUN's base.

Plot

Rouge sneaks into Security Hall while on a mission to steal three Chaos Emeralds. Due to a bit of bragging, Rouge is forced to find the Chaos Emeralds wihtin five minutes. Eggman will pester impatiently Rouge by intercom every now and then, if she takes too long.

Appearance

Security Hall is located inside the GUN base. The walls are made of metal, it’s worth noting that it’s not possible to dig anywhere on this level, Metal crossbeams, wall structures, crates and platforms are scattered across the rooms. Additional security is provided by still or sweeping lasers, which burn and will harm Rouge if touched.

The major gimmick of this level is the safes, which are locked and can be unlocked by throwing the correspondent switch. To open the safe, Rouge needs to grab onto the safe and dig into the centre of the flashing GUN insignia. One might think that this is the only level Rouge has that it’s not based in someone else’s, but Knuckles’ Pumpkin Hill Ghost train turntable shares the same mechanism principle. In addiction, the level has a time limit as well, which is of 5 minutes.

Other level specific-objects are fans that blow money that can be floated on, pulleys, pressure tanks that can be destroyed, the larger ones needing more than one hit to destroy, and packages and skulls that can be picked.

Level Divisions

Security Hall is divided into two major sections.

The first section is where the safes are located. It’s U-shaped and divides into three-sub sections according to height, each one colour coded for convenience. The lowest level is the “Red floor”, the medium is the “Yellow floor” and finally, the highest is the “Blue floor”. Rouge starts in the Red floor. Each level is in turn divided into "A", "B" and "C" block, the first to the farthest left part of the U-shape and the last to the farthest right part, with the second in the middle of both. Rouge starts in the boundary between “B” and “C” blocks.

The second section is a room located above the safe room, called the “Switch room”, where the switches to open each safe are. The red one is located at the farthest left, the yellow in the middle and the blue in the farthest right.

Enemies

• Beetle Series: Mono Beetle, Gun Beetle (Hard Mode), Spark Beetle, Gold Beetle
• Hunter Series: Gun Hunter
• Rhino Series: Rhino Spike

Animals

Animal	Number	Location
<iimg>Condor!</iimg>	2	Blue floor, C block: Inside a cage that neads to be bust open, on the suspended platform. Switch Room: On the northwest GUN waste crate, in the yellow switch area.
<iimg>Parrot!</iimg>	1	Blue floor: On the metal crate located at the boundary of B and C block.
Random*	7	Red floor, A block: In a pipe over the first metal crate, opposite the safe rows. Yellow floor, A block: Inside the wooder box. Yellow floor, B block: Inside a package Rouge can pick up, in the open safe between the Omochao and the crusher farthest right. Yellow floor, C block: Inside a package Rouge can pick up, in an open safe closer to the leftest Spark Beetle. Blue floor, A block: On the metal box located on the suspended platform. Switch Room: Inside a package Rouge can pick up, next to the right crusher in the yellow switch area. Switch Room: Whistling next to the Mystic Melody, which is located near the ceiling, northwest.
Total	10

*The Racoon and the Tiger appear randomly.

The level specific animal (third Chao box) is a Phoenix.

Big the Cat

At the beginning, jump over the ledge and float above the fans at the upper left corner, closer to the bar wall. Big is seen under the floor, holding onto the wall below. Careful Drill driving towards the centre piece will allow a better look, although Rouge will die.

Chaos Emeralds - Hard Mode

Chaos Emerald	Requirements	Hints
#1		Dancing wind. "C" block. Drive into the wind.
#2		A place which is protected by lasers. Protect "Yellow". Screw Kick the middle of the four tiles.
#3	Treasure Scope	No one can open that safe! "B" block. There should be a way to disarm the trap...

Upgrade

Rouge's Treasure Scope upgrade can be found in this level - though it requires the Pick Nails and the Mystic Melody to access. Its's in a room accessible by playing the Mystic Melody close to the ruins in the Yellow floor, C block; follow the platforms that appear, destroy the metal containers and finally entering the room.