That's a nice one, I'm impressed by the overall polish level. Everything feels coherent in the universe. Gameplay wise it has potential, I like the old school way of moving the camera with L/R triggers. The various characters available are a nice touch too.
Maybe for a scoring game it lacks a bit on the juice side, but It could be due to the overall speed of the game and the relation with the music ingame. On the other hand the game fit perfectly the late 90's gamefeel, so what I mentionned could totally not be an issue.
Well done !