Tried using Totally Awesome Hulk & Immortal Hulk together but for some reason the game doesn't allow. Is there a reason for this? They are different characters/ people so they should be able to be used in conjunction with one another. (Like Thor & Thor (Mighty), any of the spiders who are different characters, Wolvie (Samurai Daken) & Wolvie (OML), etc.)
Moving this to suggestions since it isn’t a bug.