Please, pack the game in a folder first then pack it in a .rar or .zip.
Everything seems smooth and enjoyable, a lot of game jam games feel like a chore to play but there are some that doesn't like this one. You definitely deserve high rating.
Your's game is the only one I've seen with this idea, well done.
I guess only complaint I have is that it's too easy, but better too easy than too hard in a game jam. You should try to balance the difficulty, if it's not working just make it a bit easier than intended.