It's no secret that 9-Volt is a huge Mario fan (along with all of Nintendo as a whole). But I have to wonder. What does Wario think of this? 9-Volt seems to praise Mario's games more than Wario's. Does this piss off Wario? I mean he has to know right?
Well there's evidence to show that Wario doesn't hate Mario as we think. There's that "Bury the Hatchet" game where Mario and Wario shake hands. But Wario is still super competitive, I'm sure he wants his image to outshine Mario's in every way.
I don't think Wario hates Mario as much as he used to, (They still have a somewhat friendly rivalry, but it was defintely not like it was in SML2.) & 9-Volt has shown many times to admire Wario as well as Mario. hell that's how he became a Warioware employee to begin with. It was because he found out that Wario lives in the same town as him, & probably went all fanboy on him. Hell considering how big of a Nintendo fan he is, He'll probably go fanboy over Bowser despite the fact that he's a villain.
So all in all, 9-Volt loves Mario, But he also loves Nintendo as a whole. & considering that he is shown to admire him just as much as Mario himself, I don't think he'll have a problem with it. (But I can see there there being some rule within the company in which they're not allowed to mention anything regarding Mario himself, or else they'll get fired.)
I think Wario would be more worried about someone being friends with Mario himself than his games. And yeah, Mario and Wario don't hate each other quite as much as they used to, otherwise stuff like Super Mario 64 DS wouldn't be a thing.
