You only start off as Len, everything changes from there. A new story only happen when you are teamed up or switch rider, when teamed up, changing and adding more.
I would probably want it be include various aspects of RPG, fighting, and action. I think that they should make it so, various level unlock cards and riders. In terms of fighting, I think it would be fighting/action, but when farther, it goes to something like RPG style or mixture. There is single mode to use, and how how deal with the situation unlocks other mode, and extra, like playing as Xaviax. To get upgrade in weapons, team-ups, special combination, attack sequences, movie footage, out takes, and more. Monsters are faced based on level and area, and progresses on like the story, what is different, is how you interact, which changes who gets vented or allied with you. There will always be times where you are alone or may get back stabbed.
I would want control closer to ones like prince of Persia, Kabuto Ps2, and other which I don't know thus far.