Firefly in wall is indeed a problem lol, we will definitely fix it in the future.
ladybugs can destroy multiple things at once, but I suppose we probably should make them easier to use, otherwise, the knives are too handy...
ladybugs can also bounce off the walls to detect boundaries, that was our design decision but it might not be that clear from the demo (thinking)
We def need to add another way to switch bugs, not only mouse scroll.