In Marvel: Contest of Champions you take control of a number of characters from the Marvel Universe to battle against other Marvel characters under the influence of ISO-8 and The Collector. You gain more characters through opening Hero Crystals and ranking highly in Arena Contests. Heroes vary in Star-Rating and Rank, not all Heroes are available at all Star-Ratings. Heroes are divided into 6 types which each have strengths and weaknesses against one of the other types. Below is a list of all the available playable characters in Marvel: Contest of Champions.