Thank you so much for the advice, our team appreciates it a lot as this is our first time entering a game jam and all of our first time developing a game at all. I think you might've ran into a bug with the levels. Was the first level not just 1 archer ant in each lane?
Actually yes the first level was the one with 1 archer in each line. But since I was trying to figure out how to play, I completely messed up and then I had an other level with a catapult. So in the end I thought you had a bunch of levels and you show them in a random order.
Congratulation for your first game then ;) ! (It's also the first time for me to participate in a game jam :) )