Haou Taikei Ryuu Knight - Lord of Paladin

Haou Taikei Ryuu Knight - Lord of Paladin is an action RPG in which you play as Adeu, an apprentice knight training to become a paladin. A mysterious old man approaches Adeu and tasks him with finding the twelve pieces of the legendary Earth's Blade weapon while granting him the immense power of the giant Ryu magical armor. Gameplay features real-time melee combat with sword slashes, jumps to dodge attacks, and experience gained from defeating enemies; you can switch to the massive Ryu armor form for a power boost but lose agility to navigate narrow areas or stairs. The game has a non-linear structure with open-world areas, towns, and class changes for Adeu and the five selectable companions (Sarutobi, Izumi, Paffy, Katze) who gain levels and Spirit Stone items. What makes it stand out is its seamless integration of mecha transformation with classic Ys-style action RPG exploration and combat.