QCF is absolutely awful on a touch pad. Fighting games have had SP buttons for years now. You press a direction and press the SP button for special moves. SNK games you can press and hold the SP button and move it up, down, left, or right for that particular move. It takes some getting use to. Marvel vs. Capcom 2 had an option, simplified, even more simplified, and then traditional button layouts. One of those was literally punch and kick and there was another for SP/support/etc. It works to an extent. It isn't exactly like auto-mode some fighting games have had where you go into an pre-made combo from pressing the button over and over again. I try and play with traditional controls on Street Fighter II, SNK games, and etc.. It gets super frustrating. Street Fighter IV did well on mobile. There's even an updated version. At one point in time there were actually Street Fighter IV mobile tournaments. Its hard to imagine a mobile game tournament. Vain Glory is a MOBA on mobile and I know they've had their own tournaments. The reality is that you could sync a controller and play it that way. I think a lot of games that come out now say "MFI controller support". The only time I've used a controller is when I was playing MGRising with my Steam controller. Find a good controller and a phone mount and it works out real well.