He could be responsible for taking Tiffi to the new episodes, as the train is the most common method of traveling in the game.
He might also be the one saying "Tickets please" and "All aboard!" before and after getting tickets to the next episode.
He is one of three characters who debuts in a Reality episode which has a Dreamworld counterpart without appearing at all in Dreamworld. The other two characters are Alien and Little Star (they do not appear in Nerdy Nebula and Dozy Dawn respectively). This is only applicable on Facebook because he appears in Starlight Station on mobile devices.
The Bubblegum Troll strikes again! (before story)
What shall we do? (before story)
Tiffi licking a lollipop (after story)
All the chocolate was melted! Thank you! (after story)