Really cool game. The story fits the theme; the mechanic fits the theme; this game has theme out the wazoo, so big points there if you ask me. I liked how there were mixed in bits of world-building, humor, and a little over-arching story. My personal favorite passenger was the demon going to the school; good design (all around really), and great humor there.
If I had a criticism, it was that sometimes I felt too split between the text and little rhythm game, when what I personally wanted to do was be able to take in the text a bit more. While there is something fascinating about making me frantically pick dialogue options, I think there could be some balancing there. There's probably a sweet spot somewhere that would've been impossible to find with the limited amount of time.
Overall, however, I loved it. Good vibe, cool world, fun game.