OH YOUR GOD, I LOVE STAR TROPICS!! I have both of them, even though I'm using a Famicom instead of the original Nintendo system. Had my NES since 1990 I think...somewhere inbetween '90 and '92, I know that for sure. Just crapped out on me about a year ago. I think Star Tropics II: Zoda's Revenge is the best one...plus I played both of them so many times I have all the puzzles memorized still =P! Glad to know someone else is a ST fan!
A Wii version of Star Tropics would so work, too, because you could use the WiiMote to throw your YoYo! Write a letter to Nintendo, man! You've got a good idea going here!