Karon

Karon is a non-player character in Secret of Mana.

Named for the of the River Styx that guides the souls of the dead to the underworld of Greek mythology, Karon is a friendly Robin Foot who pilots a ferry between the Kakkara Desert and the Moon Palace, and will offer his services for free in both directions.

In the original SNES version, a programming oversight made it possible to battle Karon as a regular Robin Foot, whereupon the player would be required to leave and return to his ferry to have him respawn. The remake apparently does not contain this glitch.