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 :(
Blue sky, the developers behind it, where also responsible for Starflight, the best iteration of the original pc game, and the best Jurassic Park game that exists (IMO).
And also Shadowrun! How many great, unique titles they churned, and yet were responsible for Ariel the little mermaid…
They also are the creators of one of the few enjoyable 32x titles with Spiderman’s web of fire.
Sadly Titus interactive killed it.
For Vectorman, the character never appealed to me, though props for those smooth 60 frames per second on a 16 bit title!