There are many minor characters who still play an important role in the cast of characters.  Steven’s eyes is the name of the Wii sensor bar.  The shoe spot on the floor at the foot of the bed is called the Parking Lot.  The office with the invisible walls and the sanctuary are places in the house Tristan goes to escape from reality.  Velma is the name of the family van.  Velma is a Volkswagen Routan.  Ubi is the name of Tristan’s Windows Smart Phone.  It’s short for ubiquitous.  Ubi and Tristan have nearly become connected at the hip.