I was thinking more in the lines of a copyright/trademarkt infringement.
Yes, that's the term I was looking for actually. Copyright infringement and plagiarism are very similar in the way that in both cases someone is stealing the work of others without providing a reference or source for the information.
Update: I've notified permissions@Hasbro by email

Good! I thought about doing the same. Let me know what they say, I am really curious if they care about it.