ZGMF-X56S Impulse Gundam One of ZAFT's Second Stage mobile suits. Piloted more famously by the, fittingly, impulsive Shinn Asuka, the unit became known for destroying Kira Yamato's Freedom Gundam - even if he miraculously survived the dangerous ordeal. After Shinn receives the more powerful Destiny Gundam, the Impulse is handed down to Lunamaria Hawke.