A game with surprisingly appealing graphics for the time, an open world, and some really cool mechanics like gambling and a karma system which must have been really rare back then, only held back by the fact that like most linear games on microcomputers at the time, you can beat it in less than three minutes, in this case by killing some guy just outside town.
I can't believe we seriously got NOTHING videogame-related about Usagi Yojimbo up until the new Shredder's Revenge DLC 35 years later.