Ghostfreak



Ghostfreak was one of Ben's original 10. He could go through walls. But then he escaped off the Omnitrix. Now he is a villain. And can grow tentacles out of his chest and shoot lasers out of them. Ghostfreak touched the watch and Ben got him back. Only in a new form.



Alien Force
Ghostfreak came back in Alien Force as a villain. But also as a Omnitrix alien. Ben absorbed his energy and got him back once again,