Mamono Hunter Youko: Dai 7 no Keishou (魔物ハンター妖子 第７の警鐘) is a 1991 Sega Mega Drive action game by NCS made to tie into the Mamono Hunter Youko anime.
A and C jump. B swings your sword. Hold B to gradiually generate a circular shield. Keep holding B to keep the shield. If you let go of B, press it again quickly to send the shield out to attack enemies, but hold it again if you want to keep the shield when it comes back. To get rid of the shield, simply do not press B again.
