Games like Osyaberi! Horijyo! Gekihori: Anna Holinski Saves the Universe, Alright?!

If you finished Osyaberi! Horijyo! Gekihori: Anna Holinski Saves the Universe, Alright?!, the closest matches are Andro Dunos II, Eschatos, Population: One, Space Invaders: Infinity Gene and Shell Shockers. All 9 share its arcade genre and are ranked by how closely their themes and modes overlap.