The game was nice. I'm not so sure how the limitation was used, though. The music and the assets you chose work nicely together but I think the game was too hard for me since the car movement was really hard to get used to.
like what 杏子シオリ said, I encountered a bug while playing that made the ambulance go under the map when getting too close to the hospital.
Overall, the game was interesting and cool.
If you have time to check my game out as well I would really appreciate it :D