Touch controls would be a terrible way to play it yeah, but there are quite a few great android ports that are intended for use with a controller, sure they still throw in half assed touch controls but its not the way they intend for it to be played. A good example of this would be the great max payne 1 port (or any rockstar android game really). There are also games that REQUIRE a controller like hotline miami 1 and 2. You could easily just port it without the touch controls too. I replay Silent Hill 1 like once a month, always on android. Its much more convenient than on pc.