Old Skool - Name That Game #35(?)

I thought that I might resurrect that ol' time favorite Name that Game for Old Skool Sundays. So, here it is. Don't think I've posted this one before. This game was published in 1990 by Natsume. It revolves around two "Ninja" as "they are called" who set out to destroy Emperor Garuda. And, some how Garuda has taken control of the US. I didn't say the story was great, but the game ain't half bad. What is this classic game?