Awesome that you added settings to change the keys! Not enough people do that (including me, oops) especially in jam games.
I have a "bug"-report (haha, get it....sorry):
When you catch a bug and the retracting tongue catches another bug - it will sometimes get stuck on your tongue without being able to be eaten and blocking other bugs from being eaten as well.
I could fix it, by catching another bug (but only on the retracting phase of the tongue).
Would be cool, if that bug was actually a feature and bees did that. poke your tongue and give you negative points or something.
Otherwise neat idea, but pretty boring when being alone.