Bifrost Bi-Beam Brick Puzzle
Inside the Bifrost terminal, smash the spinning gear wheel on the wall, and build the pieces into a trackball interface.
Spin upstageward to create a laser beam out the door.
Smash the two silver ornaments by the beam impact point to create a deflector dish.
Before you use it, note that each side of the terminal exterior has three silver statues, and three mirrors with levers. Destroy each statue, and pull each lever once.
Now you can use the deflect plate, once for the left side, once for the right.
This unlocks the brick case on the lower terminal exterior.