Idea is good, audio is very good (especially for a short jam), graphics are great, gameplay is also good when you understand it (aha, I need to cut the bun!). I encountered a few bugs, like orders of only bottom bun not going through, and difficulty didn't work for me, so I couldn't get past level 1, but that's probably because I'm on holiday and stuck using the laptop's mouse pad. Overall a very good game for a short jam and a good basis for building a little indie mafia burger game if you want to :) (That mix reminded me a little bit of good ole Pizza Tycoon actually)
Oh, and cheers from two other Norwegian game devs! :D