"Choo-Choo"
CHOOCHOO.ORB is exactly what you think it is - a short train trip around WharfTown, what else could it be??? You also get a ride on the local roller-coaster, replete with screams. It's a good example of what an OVERworld can be. There are ten "doorways" through which one could go to a variety of interiors, which of course would be add-ons - they don't exist, except in the version contained in the Godd™ Particle, which holds 22 Orbs in relative position.