For games with left/ right buttons, I am going to have the option to use a joystick OR the buttons. I think the reunion version of Space Invaders (with Qix) has this option.
Probably Super Punch-Out and Arm Wrestling would be better with a button for the "pull up joystick" thing. Also, maybe buttons instead of joystick for Arm Wrestling.
I guess with emulators you can use a spinner instead of mouse (they only made a mouse for SNES) on Arkanoid: Doh it Again!. Speaking of this, any way to play the Xbox 360, Wii and DS versions of Arkanoid with a spinner (on a TV, I know they make a spinner for the GBA slot of DS)?