Pokemon Pinball was a quality game in my opinion. I used to be quite bad at it... but about a year ago I got up to the Mewtwo boss and can't get past it; my save file is still probably on that level.
My thoughts; MAKE AN ACTUAL POKEMON PINBALL MACHINE!
Seriously how cool would that be?
Otherwise I hope Ninty make another one for 3DS. One of the better Pokemon spin off series for sure.