I thought this was a part of the latest Ludum Dare. You know, where something changes every ten seconds. If it is, it would easily be at the top of the list. I like this Portaboy character. I was annoyed at how some games kept going on. Well, you just have to keep going on, of course.
My favorite might have been the fish punch. I liked punching that guy! Sharks are too mean. It was unique from your other stuff. I don't mean that it was a game, it had a different style of being drawn.