I like the concept of the empty grid in this tower defense game and how it visualizes how many enemies will come in each row. The remaining blood also gives me a sense of how successful I was, which is really inspiring. However, it might be an issue on my end, but I haven't been very successful, typically surviving only 3-4 waves so far. I'm missing the ability to rearrange units after a wave or to earn a bigger income to build new units.
Overall, a very fun game that makes you want to try again and improve. Great job!
By the way, there's a small lag with the particles during the initial loading. It can be fixed by preloading the particles before the game starts (or in the background of the loading screen). Also, it's great that you used Godot for this!