Sonic Adventure 2
|Appearances and Overview|
HQ on Prison Island
|Number of acts||
When Eggman blows into the HQ on Prison Island, the security systems try to block him off by closing all the metal security doors, which must be destroyed in order to pass through. The goal is to destroy the G.U.N. robots and penetrate the entire base. Throughout the level, the security system will alert enemies to Eggman's presence by announcing the level he is on. The security of the level gets tougher depending on the security level Dr. Eggman is on.
The layout of Iron Gate is basically the same process with new twists when a new room is entered. Most of the time, the player must try to shoot locks off doors or destroy enemies while on moving platforms. Iron Gate gives the player an impression of what future levels are like.