Wave 30!? That's longer than I have ever come ;_;
Very happy you enjoyed it, and I loved your game as well :D
By the way, the count function is kinda broken, you should have defeated about 1200 enemies by wave 30
The reason for this is because that I am stupid and made my code increase defeated enemies upon them exiting the tree and there being less enemies than before, but during spawning this doesn't work as enemies will constantly increase.