The Cancelled Battle Mania 3 for Dreamcast (Patreon)

Battle Mania 3 NY: Gankutsujouis a cancelled Dreamcast shoot ’em up that was in development by Takayan and a few more developers who already working on the original series. The first Battle Mania or Trouble Shooter as known in USA was developed and published by Vic Tokai for the Mega Drive / Genesis in 1991, with a sequel titled Battle Mania Daiginjou published in 1993 only in Japan. The game settings are a parody of classic anime tropes, with flying sci-fi girls shooting down aliens and monsters. Levels are often inspired by japanese culture and they change from side-scrolling to vertical scrolling: https://www.unseen64.net/2019/03/20/battlemania3ny-dreamcast-cancelled/