Now you do. Gravity Head is by the young and wise man, Kyle Gabler, who made World of Goo.
Anyway, here's a joke based on that game. Maybe there's someone out there on the internet who'll get it.
I got pissed off at myself at how little creative, humorous, and funny content the internet had. Even the little there was, I'd seen before, constantly reposted - yet there were still people going "LOL, SO FUNI." So, I gave myself a mission. Every Monday, Wednesday, or Friday, I will try to create a new and humorous piece of original content - hell, might not be funny, but I'll still try. Because you can never have enough Original Content.