Figure out what's interesting about her. If you want to play her, there has to be something about her that stands out, whether it's a particular set of personality traits, or a general approach to her own canon's mysteries. A lot of that should carry over to a game setting, especially if you consider in advance how you're going to have her deal with the game's challenges.

If you're worried about having her be constantly overshadowed by superpowered characters, there are games out there that heavily cap or remove altogether a character's superpowers, so you could always app into one of those, too.