Star Ocean: The Last Hope International

This is the fourth "location" of the game. Overall it starts as a simple exploration game, and then becomes a relatively linear corridor section. You can see what happens as you play it.

There's no real boss to the planet (though there's a major fight, though it shouldn't take more than 2-3 minutes to beat it, so I'll skip mentioning it.

Overall though this is just a simple progression trophy.