This was a ton of fun, I would love to see a larger version of it!
I found the twist funny of the last path to come around being... well "Non threatening" is all I will say to avoid spoilers.
I have one idea to recommend if you develop this further or make something similar: in between waves it may be good to increase walk speed for the character, then lower it when they start a wave.
Thanks for the feedback, very glad you enjoyed it!
The final wave thing almost didn't make it in, so I'm glad it was worthwhile. 😉
I agree about the walk speed, it does start to get tedious to walk around building towers as the level expands, and I think it also ends up encouraging you to consolidate your towers around a single area, which is not quite what I'd like. (Although I think there are other choices at play there, too.)
My main strategy for this particular game ended up being to try and optimize my placements while conserving resources to apply to new routes that come in as they appeared so I wouldn't be left too wanting later. I did end up placing units farther out from the middle but there was a little bit of grouping later on as bat spawners came around and I needed an archer or so close by to keep things safe.
I will follow you on here and keep an eye out for more of your games!