Back in the day, Shinobi was a video game, kinda like Kung-Fu, but with more ninjas. This movie isn't based on the video game, although it might have been better if it was.
Shinobi are the lower class foot soldiers of samurai. They are assassins and swordsmen trained to kill or be killed. They love to run around in forests. No lie, 80% of the movie is the woods. Shinobi are also as cliquey as high schoolers. Kagerou is the best shinobi so of course no one likes him except his bestie, Aoi. She is part badass and part damsel in distress. Very confusing. They fight the bad guys, a dude gets impaled by a log, another guy gets gutted like a rabbit, and our heroes run around in the woods.
Looking forward to Shinobi 2: In the Woods Again.
Score: 2 cheap samurai of 5.