Street fighter is one of best fighter game with simple fighting mechanics, easy to learn and hard master but there is a android version available on play store you guys can give a try.
Game modes is not as deep as PC but an be a pocket friendly title to play and kill the time.
bet the touch buttons are awfull, best carry your controller around with your phone lol
i play alot of the old brawler games on my android, with a controler of course
could be one to try.