The Harpsichord Tile Shifting Effect is a nice way to illustrate how Ultima V manages tiles. Playing "Stones" on Lord British's harpsichord in Ultima V opens up the secret passage to the Sandalwood Box. However, getting out the mechanism behind the vanishing of the wall gives quite amusing results. Of course knowing this, the mechanism can be abused in quite a number of ways, after opening the wall: Below a video of the harpsichord effect and how it can be misused. File:Stupid Ultima V tricks The Harpsichord Effect.