The SlugTerran Express is a system of lightning fast trains that ride all over SlugTerra except for the most remote caverns. It was created by Dr. Blakk using an old broken-down cart line. It is used mostly for transporting dark water but is also known to carry passengers.
To get a trip would cost a bundle and the Express made Blakk rich.
- The SlugTerran Express runs on Ghoul Energy. Since Blakk started the Express before creating Ghouls, there is either a continuity error or the Express was upgraded as some point in time from running on Slug Energy.