There's always been a certain mathematical elegance to Street Fighter II. That's how 10-year-olds become so indestructible and undefeatable when playing.
They figure out the equations, cleverly represented by GUIs in the shape of cartoony fighters, and know exactly when to add, subtract and perform long multiplications on your character's face.
Doing the maths of Super Street Fighter II is surprisingly easy on the mobile keypad. Indeed, the numbered buttons essentially aid in its operation.