Super Star Soldier High Score

From Greg Cook <xxxxxx@student.canterbury.ac.nz>
Date
Hey Guys

Just playing super star soldier, havent played it for years.
Im playing the 2 min attack game, to see what type of score i can get, well
i did a bit of a search on the net and i see many japanese sites listing
500000 + for the 2 min game, which makes my 331000 pathetic, so i cant see
how to get a higher score, im sure theres some bonus, ( i found one where
you get 80000 for staying inside the moving ring and shooting it), but i
dont know where they are.

Anyone played this game to death found some secrets?  I think its got
something to do with the 3 moving ringsand having to shoot them?

any advice on this is appreaciated.

Greg