I'm just think "anime obsessed geek that gets mostly physical buffs".  Basically, he'd be Larping an Anime style heroic character without  realizing how stupid that was.  Of course, I said mostly physical buffs because, as an anime character, he has to have energy powers.

Or he could build tech to give him these powers.  Nanites could alter his body to give him strength, speed, and agility, plus he would have armor and gloves that work as plasma guns.  He would be a technopath with a bit of technokinesis or telekinesis (a few kilos maximum mass on what he moves).