Cool. Turned out quite nicely. The concept has a ton of potential in my opinion. The fact that you can choose the difficulty yourself by deciding which plants you plant down is super interesting. It's probably also a good idea that you made it a bit easier. Perhaps it's a bit too easy now, though. I had to wait over a minute for the boss to appear after covering the entire field with defenses. Also I think there is an unintentional bug where you can attack the boss by selecting a tower and just hovering it over the boss. Overall really nice. :)