They make appearances in the game very often, and while they're nice at first, they quickly come off as a bit lazy and become annoying. (glitchcat.com)
Whilst this wasn't his first appearance in a game, it was his breakthrough and he's still ever popular today. (playstationenthusiast.com)
Could this be hinting that the Hulk will make a guest appearance in the game? (thatvideogameblog.com)