Depends on whether or not the creator is fine with her being in a porn game. Characters having suggestive designs doesn't necessarily mean their creator wants them in games like this.
Despite there already being lots of porn fan art of her, they probably should still get permission 1st. Maybe a different route the devs could take is how Shady Lewd Kart gets permission from other NSW game creators to use their OCs. That way, PS2 will still have that crossover factor but free of copyright from Corps that don't like nsfw of their IPs
