If you liked this
Games like Yami no Ryuuou Hadesu no Monshou
If you finished Yami no Ryuuou Hadesu no Monshou, 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.
