I got an idea for a level, It doesn't sound great but I'll throw it out there...

I don't really have an idea of what to call the level but like, You load into the level and run forward onto a Party button, Which leads into a huge room like an Arena.

Inside there you step on another party button and a mirror appears in front of you and you see your knight's reflection within it. You attack it and a clone of yourself pops out and you have to fight it to continue.

Bleh, I know my ideas are lame. :D