This is a sequel to Just How Dangerous Would a Plopup Be? and concerns an idea I had for making Plopup more dangerous.
Basically, the problem with Plopup is that they are too predictable. Hurt one, and it'll relentlessly seek revenge. They also have a strange penchant for eating scantily clad women. Alongside this, they watch people, particularly women, select one target (or maybe two or three), then use messages, surprise appearances, and the like to unnerve and manipulate their prey.
That being said, their incredible intelligence and mimicry could enable them circumvent all of that. How? By masquerading as adventurers. Adventurers tend to be oddballs, they move around all the time, and quite a few are vengeful folk and/or womanizers. Additionally, a Plopup's high durability and mobility allows them to easily escape situations or kill monsters that would be challenging or even unescapable/lethal to human adventurers.
However, this may not be as genius as I hope, and so I have a question: Would The Plopup Masquerade Be Effective?
Since this demands additional information, in addition to the linked question above there is this link. If there are any problems with this question, please let me know so I can improve it.
Clarification: The masquerade is supposed to be effective against people and sentient beings (elves, dwarves, orcs and the like) in general, since Plopup want to prevent being found out. See, if one Plopup is found masquerading as an adventurer, that'll put all adventurers under suspicion and would lead to all of them being unmasked.
The Plopup are capable of mimicking the form of the human body effectively, but they can't get some things quite right. First up, their physique. Most Plopup can passably imitate a human, but they're revealed as fake humans upon any close inspection; they lack body hair except on their face and scalp, their bodies are unusually rounded, making them look sort of childish or blobby, and their nails and teeth don't look quite right. Their hair is sort of stiff, and sometimes it moves oddly (because the hair is actually tentacles and responds to their emotions, like by spiking up when they're angry). They're also oddly flexible, like a fully Rubberized human (see link 2 for more on those people).
To avoid being revealed, Plopup prefer wearing concealing outfits; cloaks, trench coats, gloves, knee-length boots, cowls and hats, monk habits, mage robes, knight armor, and so on. (There are a lot of options available to the typical RPG adventurer, no?)