Mine has to be Dragon Quest: Rocket Slime, a DS spin off of the Dragon Quest series that sees you playing as a slime operating a tank and rescuing the people from your town. You run around the overworld, collecting items to use as ammunition and saving money to upgrade your tank. The art and music are just as great as you’d expect from the Dragon Quest series. It made fantastic use of the DS’s dual screens. It’s also written for a younger audience, so a lot of it is just really silly and fun! Try it out for sure, I’m so sad there’s no sequel :(
Space Griffon VF9 -for the PlayStation 1
It was a mech combat on the moon game, with great voice acting that turned into a space horror game very slowly over the course of the storyline until you were scared of every room down every hallway and would hear the screams of the thing hunting you in your dreams.