I really appreciate your feedback. These issues definitely exist, and other players have experienced similar problems. I will rebalance the game for sure and add a lot of new quality-of-life features, such as a coin-grabbing drone and highlighting purchasable upgrades, in a big demo update coming soon.
The Armor reduces the damage you receive when you deal damage. Yes, you take passive damage, as well as damage when you attack enemies.(all that scales with prestige)
When you’ve just reached a new prestige, it was intended that you farm some coins on previous prestiges before moving forward. Then you’re able to farm newer prestiges, and the whole process repeats in a loop.
The red nodes are a little randomized, it just may have a little more or a little less hp , the same goes with size , also they get a little bigger with prestige.
Thank you for your comment!

