I think in that main song the instrument choice and vocals are really well done, it's very much like the exact type of vibe that pops into my head when I think of "Dinosaur Town". Really well done too.
InkShop is a great shop theme, and Octoburg is very floaty and uplifting. I get heavy Ocarina of Time and Mario 64 vibes respectively. Melty Vanilla is my personal fav, it's very playful and has that kind of merry go round/carnival cadence.
I think all of these tracks are great "Video Game" music in that they would fit really well into the structure of a game and provide a really evocative ambiance that works with exploring and playing rather than distracting from it, if that makes sense.