Oh and for all the bickering Nintedots and Sons of Sony out there take note of this;
SNES-2 top buttons
PS1-4 top buttons
N64- Analog, Rumble Paks
PS1-Dual Analog, Built in dual vibration
GC- Dual Analog (if you count C stick), Built in vibration
Xbox- Dual Analog, Built in Vibration
Nintendo makes it , Sony improves it, Microsoft makes it standard.