As a counterpart to the Bad Wario Artwork thread, because why not?
I'd advise using spoiler tags, just to make it easier on anyone's computers.
I'll start with these :
This is actually the european cover art for the game and what a way to sell you on it.
I always thought that this one just plain rocks, Wario's expression and pose really sell it and show off his character perfectly.
Really, you could put anything from Smooth Moves or the DIY games here, because to me, that's when the WarioWare artworks became really, really good, it's shame we had such a switch afterwards.
Say what you will for or against the game, but the official art is damn stylish.
I'd advise using spoiler tags, just to make it easier on anyone's computers.
I'll start with these :