Thanks! Great feedback!
Yeah, I've missed that money indicator not showing up during the tutorial. Definitely should be there
Pausing the game during shopping feels a bit too much, but I'll def remove the wave countdown and let players to deicide when to start the next wave. We'll see how that works first =)
Your point about limited ammo is somewhat puzzling. Some players love it and others don't. I was hoping it would give the game a bit of survival feeling where you have to keep track of at least 3 parameters: hp and ammo for 2 guns. Not sure how to approach the issue for now but I'll definitely keep your objection in mind.
Again thanks for playing!