So, Blue Shadow—it's basically just the European name for Shadow of the Ninja on the NES. Same game, different box art. You jump, slash, and shuriken your way through a pretty tough ninja action-platformer with a killer soundtrack. The controls feel tight, but those jumps over bottomless pits? Yeah, they'll test your patience.

It's one of those NES games where you either love the challenge or rage-quit after the third stage. Still, if you're into old-school ninja action, it's a solid pick. Just don't expect any mercy from the level design.