OK! Game 6, Rd 1 in the books
Here is the recap

Here are the LB statuseses

And here is what we know about the game:
The game IS NOT Sword Of Vermillion
the screenshot is NOT from a mega drive version of this game (if such a thing exists)
is NOT a brawler
is NOT closely associated with game designer Hideo Kojima
did NOT have a 1998 release
I do NOT consider it an RPG
the “main character” does NOT have a gun (this answer is negative for more than one reason)
NOT developed by beloved Falcom
did NOT have any particularly well-renowned sequels
WAS developed in Japan
IS a side-view perspective having game
PROBABLY would have been rated E for everyone, but would have been more of a hard E
the colour palette seen in the screenshot IS representative of the majority of the game
it would PROBABLY be called an adventure game