Shura

Shura (修羅) is an enemy from Mirai Ninja. These green ninjas appear in pairs on the sixth and eighth stages, and attack by materializing on either side of Mirai Ninja to throw small fireballs at him; as with Oda Nobunaga's double-edged blade, you will have to crouch down to avoid the fireballs the right ones throw, as they will go over Mirai Ninja's head. Once you kill either of them, you'll receive 3500 points - and once you kill that remaining one, you'll receive 3500 more points.