Really cool game! I enjoyed the "show, don't tell" way you introduced new mechanics. Difficulty progression feels very natural. And you even managed to add some unexpected humour (maybe I am alone with this, but I laughed when the guy pulled out an umbrella :D ).
Minor things:
Mouse sensitivity was a little too high for me.
Music and sound effects are not necessary at all, but they do make games feel a little more alive. If you have time after the jam, I think it could be worth it to add a couple.