Don't worry, it's hard to get everything working the first time. I like the game you have though! Even if the goblins don't do anything, they look pretty good and I wanted to hack through them. :D
It's really not bad for starting out. You shouldn't even get disqualified in my humble opinion. That you couldn't get the game online properly doesn't negate the time you spend working on it - and you linked to a playable version after all.
So good luck with that & also for future jams! Keep it going! :)