This is The World's Hardest Game. I guarantee you. it is harder than any game you have ever played, or. ever will play. THE WORLD'S VERSION. World's Hardest Game at Cool Math Games: It really is. Don't ask me how to beat it. I can't. But I've seen it done and it's possible. You guys have been begging. See if you can beat your high score in the most frustrating game ever! In Nickelodeon's Hardest Game Ever challenge yourself and see how many levels you can.