You have re-entered the transporter room. You recognize the alcoves lining the wall, with exposed wires and other circuitry hanging from inside them, and from the ceiling. You see the other doorway, which leads to hallway A1.
Go to hallway A1.
Go back to hallway A4.
Beam off the Cube
Beam to Kewlgoop!
Beam to Freakish's home page!