There is an app you can download for free that has no virus, no trojan horse or spy ware and its total free. You can play with old timers who used to play the popular street firghter arcade games from the 90.
You can challenge and play other players from the around the world like from Korea, Japan, USA, Canada, France, Brazil, Argentina, Peru, El Salvador and Mexico.
They are really fun to play. You can google fightcade online retro gaming