Meatball piston

SOE-899 Disturbed Shoot! Hana Haruna Piston Nikudan Haruna Hana Released Mar 7, 2013

SOE-798 Rampant Shooting! Bullet Piston Yoshizawa Akiho Released Jul 7, 2012

SOE-500 rapid-fire meat piston Kayama Mika Released Nov 19, 2010