The Register is a location in the game Five Nights at the Krusty Krab.
The Register is a dark room with a lots of diner tables and chairs, there´s also a window stretching from almost the entire room.
This is where Squidward Tentacles starts, he starts standing on looking backwards for the camera, when he is about to move, he appears a bit more away from the camera still looking backwards from it.
Spongebob can also appear here, he appears far away from the camera, looking to the right.
Mr. Krabs can also appear here, he appears in the left of the room near the camera.