I like the concept, but it took me a while to understand what is going on in the game. A bit more explanation, highlighting the first enemies when they appear and different images for the upgrades would help a lot.

Thanks for the feedback!
I'll definitely add more rewinds for the easier difficulties. How would you do a tutorial? Like a battle with dumb AI showcasing the new pieces?

Thanks, what you suggest makes a lot of sense. I'll probably include it in the final version, but I don't have the time to include it in the demo right now.

Thanks for the feedback. Take into account that this is a demo, the final version will have a map that is at least 3x as long.
I'm upgrading the menu, and plan on doing something cool with the map: a LoTR style map, but that will come later.
I take note of the immortal suggestions, when playtesting I also find it obnoxious sometimes. I'll make sure to limit it so you can only have one of them.