If you are a fan of unity 3D games with ninjas, then you have to play Ninja Super Fight!, also. In Ninja Super Fight!, you are a brave ninja who has to fight against endless ninja enemies. Remain alive with any costs and defeat them all. Use your katana or throw with shurikens to kill them. Also, you can play this game in two players mode. Have fun and good luck!
Use W,A,S,D keys to move, F key to attack and G key to jump