Why would they give Lemon Demon a cat face? There is nothing cute about him at all. He's a creepy lemon-headed monster that sings in an ominous way about how much he wants to eat people.
If I was a parent, I'd be wary of what my kids watch and let them watch what I grew up watching. You know, stuff like shows on Nick Jr/Noggin or Disney Jr/Playhouse Disney.