Level 200 noblesse?

Like I said, normally, that can't be done. By commands I mean GM commands. It's possible to get Cygnus and Adventurers in private servers to level 255 by default, which means it's possible to do so in the official server too. Normally, yeah, you can't do it. However, with the right hacks or GM commands, it's more than possible to get past the level cap.

"Because you can do it in a private server" does not mean "you can do it in the real thing".
A private server is not running the same code as the real server, it's an attempt to emulate it - It can be made to do anything because it has no actual limitations but what the coder puts there that need have no relation whatsoever to what the real game has.
tldr; You can make a class in a pserver that farts mushrooms that explode and wipe out whole maps including other players, doesn't mean you can do it in GMS.