Monster Enthusiast Marlo is an inhabitant that can be found in the Frontier, most notably near the statue between the borders of Great Pine Forest, Topple Hill, and Twinkling Meadow. Monster Enthusiast Marlo is always seen observing the statue, watching the strange creatures and monsters that magically appears by the statue's presence.
The name Marlo may derive from the name, Marlowe, which means "from the hill by the lake." This could be a reference as to how Marlo is found on Topple Hill. Marlo's main role is to be a monster enthusiast, a person who is highly interested in monsters.
Players can interact with Monster Enthusiast Marlo, allowing them to gain access to different dialogues. Here are the dialogues:
"Ever since that statue showed up down there, all sorts of strange monsters have been showing up around here."
Monster Enthusiast Marlo mentions the statue that showed up near Topple Hill had recently been attracting strange monsters and creatures near it.
"I've seen all sorts of new monsters around Topple Hill lately. What happened?"
Monster Enthusiast Marlo states that he had observed all sorts of new monsters near Topple Hill. Marlo then proceeds to ask what happened as to how the statue appeared and its 'aura' that monsters are attracted to.
"Listen, you look tough, but even if you're used to the "normal" monsters out there, I've been seeing some real scary looking nightmares roaming around. So be careful!"
Monster Enthusiast Marlo comments that the player looks tough and implies that even if the players were to be used to the 'normal' monsters out in the Frontier, Marlo states that he had seen real scary-looking nightmares that roam around in the Frontier. Marlo then tells the players to be careful.