I SERIOUSLY doubt it just a coincidence that the one in your screenshot and on the video look EXACTLY the same. It's not hard to give credits, so do it. In fact, it makes you look professional for giving the proper credits. However, not giving them and claiming you used no help or tutorials is just going to destroy your reputation. I wouldn't expect much of you Subcub, like that time you edited Gordons hack in Paint, then claimed it as your own. I'm not even going to go into detail of what happened after that, but face it. Your reputation can't get much worse at this point, so why start now?