Very ambitious as you said, I enjoyed what I played! It has a classic Unity vibe to it. The fact that there are settings and everything is neat, didn't expect that in a game jam game! The controls are also clear and useful to figuring out how to play. However, there was one problem: 
After figuring out the controls and delivering some packages, I took a package to Emma, and then after the short cutscene, fell through the world. This happened several more times, and it happened every time I strafe-walked. I've tried to beat the game about 5 more times, but I kept falling through the world.
Anyway, I still had fun strafing around and delivering packages!