Marco's monster arm. If you don't remember it, your definitely not a fan. There has been a major theory going around about it that is the premise of many fanfic's. I agree with them.
The theory is that Marco's monster arm will come back. How do you know this is true, you may ask. Well, for starters the arm, as it was shrinking back to Marco's regular arm, said he will return. Most people said that was an empty threat, but this got a bit deeper.
During the episode Storm The Castle, Star was looking through the a craters of a strange monster for sandwiches. When she asked Marco if he wanted to help he said no, after looking at his arm and seeing a flash back of monster arm.
I think, just like many other svtfoe fans, that monster arm will come back and take over Marco's body. He will probably work for Eclipsea and Star will save him and bring back the real Marco.
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Star Vs The Forces Of Evil Facts And Theories
RandomI will post some facts and theory's about the show SVTFOE! The readers have the chance to recommend some facts\theorys (you will be given credit for the facts) I do not own SVTFOE
