We were 2 working on this and there was definetly more than 2 days worth of work since we worked for around 30 to 40 hours each on those two days, we just literrally did nothing but the creating the game during this week-end ^^
I don't know how you did your game jam but that's how we like to do them! That's probably not the smartest way but it's really enjoyable once you are done!