The OST video was awesome lol. Helped a lot with contextualizing!
Reminds me a bit of the Toontown soundtrack so you get some nostalgia points from me there. Everything, from the composition to the instrumentation, felt cohesive with itself as an OST and to the story. My only suggestion is to have some more driving percussion in "Octo-Popper Supreme" to make it even more final boss like. Great work!