Plot: Hyper Duel is a Japanese video game developed by Technosoft and released in 1993. It is a horizontally scrolling shooter which takes inspiration from the Thunder Force series. The game has the player take control of a ship that can transform between a humanoid mecha and a space ship. Wikipedia
Plot: Terra Cresta 3D is a 1997 vertical-scrolling shooter video game developed and published by Nichibutsu for the Sega Saturn in Japan. The player assumes control of three starships as they must complete six stages while destroying enemies and avoiding collision with them and their projectiles. Wikipedia...
Plot: Bulk Slash is a third-person action mecha simulation video game developed by CAProduction and published by Hudson Soft for the Sega Saturn exclusively in Japan on July 11, 1997. Wikipedia