Board Thread:Questions and Answers/@comment-5993147-20131115084939/@comment-2138661-20140311173935

I have a feeling that Kenny was helping Ben 10,000 get to the present to assist Ben. By him giving the thumbs-up, all of the modifications were complete. I'm not really sure, I am just making an assumption. He has a cameo, not involved in the Good vs. Evil battle.