A [[bus]] with a train-like exterior that serves as the Sinners' mode of transport and living quarters.
Its engine was developed by [[Faust (project moon)|]], and its mirror technology (which allows access to the many ingame alternate identities) was partially developed by [[Yi Sang (project moon)|]].

It is operated by [[Charon (project moon)|]], who calls it Mephi.

In literature, Mephistopheles is the demon that offers the doctor Faust vast knowledge in exchange for his soul.
mephistopheles (project moon)