Mario Party X will be meanest. Because, you know, it's got an X. Mario Party 8 is like America's Got Talent, with Piers, and Mario Party 9 will be like the British version of America's Got Talent (so, Britain's Got Talent), where it has Piers and Simon. And some British Paula. But Mario Party X will be like Hell's Got Talent, where the British Paula is replaced with Anne Robinson, but she's disguised, so at first you think she's just another random Paula, and then she turns out to be mean.