MMO, RPG, the mix of the two and resource managing games aren't my genres, because I don't like OCs and I cannot control the games. My genres are platforming and FPS games.
The green wolf on the box bothers me in the sense that it's a balance/framing issue. If they had kept him red, you'd have a neat red triangle of sorts surrounding Sonic, with Knux on the right, Eggman on top, and ol' Wolfy there on the left.
But with the greenish-blue wolf, you have three blue characters taking centre stage. That frames them well.
The box would have been very red/orange heavy if they'd used the red wolf. He might not have popped enough, being positioned in front of Tails.
I kinda felt the other way round. The Blue/Green wolf blends too much into the blue-tone light behind him compared to the Red wolf, which I felt would have 'popped' out a lot more to me.