SPOILER for Yhtwtg!!!!!: I really liked "You have to win the game", but how are you supposed to know, that you have to press the ^ key in order to enter the "Magic Word"
The "magic symbol" seen on the walls throughout the world is supposed to look similar to a tilde key (~), which is the default binding for bringing down the console. I realized after shipping the game that that binding wouldn't be the same on other keyboard layouts, which is why I changed the ending of the game for the Steam release. That's what I get for trying to be too clever. ;p