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 :(
Noclip did a doc about it recently (https://youtu.be/GtNvEna6bxc). I remember seeing it for the first time at a buddies place growing up, but I didn’t have a strong enough computer to run it. I did though when black and white 2 came out and it was awesome! I feel the only thing comparable to it currently is the Anno series, no spells or anything but just city management and stuff.
Thanks for the link.