Thanks for playing and the feedback!!
I totally agree with you about the UI and feedback to the player. Not having an indicator of when you were doing damage to the ant was a big oversight on my part, I should've coded one in but I just didn't get round to it before the jam submission period ended.
Thanks for the feedback anyway, it's really useful seeing the issues with the game as it gives us things to focus on since we are definitely planning to do an update when we have time to :)