Cute, sounds got a little repetitive, highly recommend changing the pitch randomly on each instance. Forget how to do that in Unity but I remember it isn’t too complicated. Agreed with others about wasd being harder to parse, but my brain also found things like -><- confusing because of the way it chunks information so I assumed it was a me problem.
Only last thing as someone who loves mantis shrimps, would be cool to see them with some more of their fabulous colors!