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Not to be confused with Security Corridor.

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Sonic Adventure 2
Security Hall

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Security Hall is the eighth stage in the dark story of Sonic Adventure 2 and Sonic Adventure 2: Battle, and is playable as Rouge the Bat.


The stage has three different floors which contain Safes. The floors are divided into three colors: red, blue, and yellow. They are also divided into three different blocks, or sections. At the start of the level, a random color floor is already active.


In order to steal more Chaos Emeralds for the Eclipse Cannon, Dr. Eggman suggests a three-part plan. First, he will distract the military guards of Prison Island, while Shadow places a bomb among G.U.N.'s weaponry. However, because Dr. Eggman ran into an unexpected delay on his end, he ordered for the bomb to be set to explode in fifteen minutes. Rouge infiltrates the G.U.N. base and has five minutes to steal the three Chaos Emeralds G.U.N. has acquired and meet up with Shadow and Eggman before the bomb goes off.


In this stage, there are giant fans, springs, locks, and enemies as obstacles. The Safes can only be entered (by digging into them) once the switch for it has been pressed. Switches to these are located in the upstairs room. Only one switch can be active at a time.


1st Mission: Steal the 3 Chaos Emeralds in 5 minutes!

Rouge begins the level by defeating an enemy. She then moves on to explore the Hall and look for the emeralds. Rouge must collect the three Chaos Emeralds hidden throughout the level in five minutes.

Floor Color Block A Block B Block C
Red 3 2 1
Yellow 1 4 2
Blue 1 2 2

2nd Mission: Collect 100 rings!

The Mystic Melody is required for this mission to collect some Rings that are hidden by the Ancient Ruin. Some Rings are hidden inside containers, and others are inside safes.

3rd Mission: Find the lost Chao!

The player should start by taking the pulley to the top floor and standing at the highest floor in front of the yellow letters at its beginning. They must turn on the Treasure Scope, and they will see a spring on top of the letter "B". They must bounce from it to reach a platform where the player finds the lost Chao.

4th Mission: Collect the Chaos Emeralds 3 minutes 30 seconds!

Security Hall is not very large, so finding the emeralds with the radar should not take too long. The player should begin by gliding around the lower floor, and if nothing comes up, they should move to the top. It is worth noting that Chaos Emeralds can be hidden inside safes.

Last Mission: Clear Hard mode!

The first Chaos Emerald is hovering above the fans to the right of where the player begins. The current juggles the player above the emerald's location, so the player has to perform a drill attack to grab it. For the second emerald, the player must head to the top floor and navigate through the lasers and toward the yellow safe switch. They must then climb up one of the two large boxes just in front of it and glide over to the emerald floating between them.

The third Chaos Emerald is inside the safe directly below the crusher on the red floor in B block. The player must first open the red safes in the Switch room, then go to the B block and climb to the steel platform. They then need to use the Treasure Scope and hit the Spring, which will make Rouge activate a switch that will stop the crusher.

Level Up Item

The Treasure Scope can be found in a room that is protected by steel boxes. The Mystic Melody is required to obtain it.

Chao Container locations

  1. Red floor, A block: It is on the ground and in the middle of the two farthest metal crates, opposite the safe rows.
  2. Blue floor, at the boundary between B and C block: It is inside the safe directly above the metal crate.
  3. Switch room, yellow area: It is next to the crusher and between the two metal crates.


Big the Cat sighting

At the beginning of the stage, the player should jump over the right rail and float above the fans in the upper left corner, close to the bar wall. From there, Big can be seen hiding under the floor holding onto the wall below. The player should carefully Drill Drive under the floor, then glide toward the central pillar, which will allow a better look. However, descending as far down the wall as Big is will result in the loss of a life.

In Hard Mode, Big can be seen clutching onto the money fan in front of it.


1st Mission: Steal the 3 Chaos Emeralds in 5 minutes!

Score Rank
12,000 A Rank (Sonic Adventure 2).png
10,000 B Rank (Sonic Adventure 2).png
8,000 C Rank (Sonic Adventure 2).png
6,000 D Rank (Sonic Adventure 2).png
<6,000 E Rank (Sonic Adventure 2).png

2nd Mission: Collect 100 rings!

Time Rank
4:00 A Rank (Sonic Adventure 2).png
4:30 B Rank (Sonic Adventure 2).png
5:00 C Rank (Sonic Adventure 2).png
5:30 D Rank (Sonic Adventure 2).png
<5:30 E Rank (Sonic Adventure 2).png

3rd Mission: Find the lost Chao!

Time Rank
0:30 A Rank (Sonic Adventure 2).png
1:00 B Rank (Sonic Adventure 2).png
2:00 C Rank (Sonic Adventure 2).png
3:00 D Rank (Sonic Adventure 2).png
<3:00 E Rank (Sonic Adventure 2).png

4th Mission: Collect the Chaos Emeralds in 3 minutes 30 seconds!

Score Rank
13,000 A Rank (Sonic Adventure 2).png
12,000 B Rank (Sonic Adventure 2).png
10,000 C Rank (Sonic Adventure 2).png
8,000 D Rank (Sonic Adventure 2).png
<8,000 E Rank (Sonic Adventure 2).png

Last Mission: Clear Hard Mode!

Score Rank
16,000 A Rank (Sonic Adventure 2).png
15,000 B Rank (Sonic Adventure 2).png
13,000 C Rank (Sonic Adventure 2).png
10,000 D Rank (Sonic Adventure 2).png
<10,000 E Rank (Sonic Adventure 2).png


  • For mission 2, if the player goes up to the very top area, they will find a shrine that activates when playing the Mystic Melody. This will give a large number of rings laying around in the spot which can help with this mission.
  • This is another 3rd mission in which the Mystic Melody is not required to get the Chao (the Treasure Scope is needed which requires the Mystic Melody, however). This can be finished very quickly.
  • Sonic's face is printed on the cash blowing around in the stage.
  • Rouge told Shadow to set the timer for five minutes, despite Eggman telling them to set the timer for fifteen minutes, which Shadow did, so it is unknown why the player had to finish the stage in five minutes.
  • The song for this stage, "I'm A Spy ...for Security Hall", reappears in Team Sonic Racing as Rouge's Team Ultimate theme.


Name Artist(s) Length Music Track
I'm A Spy ...for Security Hall Tabitha Fair, Fumie Kumatani 3:37



Sonic Adventure 2 (PS3) Security Hall Mission 1 A Rank


Sonic Adventure 2 (PS3) Security Hall Mission 2 A Rank


Sonic Adventure 2 (PS3) Security Hall Mission 3 A Rank


Sonic Adventure 2 (PS3) Security Hall Mission 4 A Rank


Sonic Adventure 2 (PS3) Security Hall Mission 5 A Rank

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