I know you're not the author of this mod. Those are just some thoughts that came to mind seeing this. So, Wolverine's knee-thrust attack would work well as a jumping animation for him. Also, hopefully the characters are all eventually given jump heights appropriate for their character, even if it makes them unable to do things Spidey can do. Another thing I feel would improve this mod is the ability to skip the wind-down section of an attack animation by pressing the attack button early; Since these moves were meant to be avoided by the player, not unavoidable for the baddies, their animations drag on too long, which leaves the player waiting for the character animations to be ready for them a lot of the time. That said, this is the coolest thing to ever be made for this game by an enormous margin, and I've very excited to see it progress.
