Makai Toushi Sa-Ga on WonderSwan is likely a role-playing game (RPG) featuring a fantasy setting. The series is known for its strategic combat and story-driven gameplay. The original inspiration is likely the SaGa series. The (J) specifies a Japanese release, and the [!] likely indicates a release variant or edition. Further research is necessary to determine the specific developer and publisher.

Makai Toushi Sa-Ga (J) [!]

Lode Runner (J) [M][!]