I saw some waves dissapear, and thought it was random. Not figuring out you can hide behind the rocks is on me, it makes so much sense, haha. I also like how you and the boss share the same healing source.
It's interesting, because at first, I thought the boss had too much health, but now that I lasted longer and got more upgrades, it exponentially becomes easier and felt more balanced.
If you keep working on this project, I'd love to see other bosses and more variety with upgrades.
Thanks for the experience =]