I can always accept when the art style changes, I'm not a fan, but I understand there are reasons, that make it necessary and it was like this here as well.
I wasn't a fan of the new look, but I accepted it, but I am not fine with the old content being completely replaced with the new style.
That just sucks.
And frankly, if you make a game based on a cartoon AND your artwork perfectly fits the style of the animated series, only sexed up, to go and change the art style AWAY from that is already questionable, and to then go and replace the old artwork as well? Yeah, maybe the game will look more cohesive, but it also won't look like the show it is BASED on anymore. How could you want that?
How could you think the people who want to play a game based on that show would want that? It makes no sense.
And to be frank again, you need people who want to play a game based on Danny Phantom, because WHO ELSE would even be interested in this game? It's your audience, and your audience wants the artwork to look like the show, not like the artist expressing themselves in their personal style.
I was worried after the change in style, now I am just fucking disappointed.
Edited to add: Don't get me wrong, that doesn't mean I'll boycott the game, but I'm not a fan of changing the old artwork to fit the new style. I'd prefer they didn't do it, and it does make little sense, considering the regular target audience for a parody game like this.