Safe

Safes are large gimmick that appeared in Sonic Adventure 2  and it's sequel Sonic Adventure 2: Battle''. ''They are simply large locks that are used to hid various objects in Security Hall.

Description
Safes are large locks that exist on the walls of Security Hall and they come with different colors from the blue to the red. In gameplay, they serves as like the pipe a gimmick that hides items, however the player has to find a switch to open them. To use in gameplay, the player has to find the correct switch that open them then go to the safe and climbs to center of the safe where there is a small GUN's logo and then digs on it to make the Treasure Hunter enters the Safe and open it to collect the needed object. But the player has to remember that if the GUN's Logo did not appear on the center of the Safe then the player cannot open it only after finding it's switch. They can only be found in Security Hall.