/vr/ - Retro Games

Christian Whitehead did a pretty good job with controls for the sonic ports, but then, that's really just left and right with an action button.

NBA Jam had a decent control system, where anywhere touched on the left of the screen would become your 'joystick', so if you missed the exact placement of the stick, it would move to where your thumb now is, allowing you to slide to the direction you want.

Street Fighter 4 seemed to work well too. Customize where you put your buttons.

When you need to switch between buttons, like A/B a lot you'll lose your place a lot, which is bad for 'quick' games.
It's not impossible, but I think emulators just go for a quick solution, making buttons at X instead of a range of X +1 to +5 or something.

I also have a personal problem where I really push into the screen as if it were a controller, which isn't so good.