Getting paid after you have a chance to buy upgrades is annoying. I have to spend a day sitting on $100+ which could be spent getting an expensive upgrade.
Would be nice if you could sell off old units, it's painful when you need to fill up with basics early on so there is no room for advanced units later.
It's very frustrating when you can't get any height because the sky is full planes, could we at least be able to score from below, even if we can't get past the blockade.
would it be possible for orders to carry over to newly spawned units? when I've had my hero retreat it's annoying for all the new units to be sitting back by my castle waiting to be told to charge.
And would it be too much to ask to see unit stats on the equip screen?
 "Hungry Shapes 3"){kind=icon}
 "Knightmare Tower"){kind=icon}
 "Papa's Freezeria"){kind=icon}
 "Cardboard Box Assembler"){kind=icon}
 "Upgrade Complete 2"){kind=icon}
 "Rocket Toilet"){kind=icon}
 "Protector IV"){kind=icon}
 "Insectonator: Zombie mode"){kind=icon}
 "Pogo Rampage"){kind=icon}
 "Drift Runners"){kind=icon}
 "Zomgies 2"){kind=icon}
 "Animal RaceWay"){kind=icon}
 "Epic War 3"){kind=icon}
 "Learn to Fly"){kind=icon}
 "Cursed Treasure: Don't Touch My Gems!"){kind=icon}
 "Bloons"){kind=icon}
 "Man in Gap"){kind=icon}
 "Roling Tires"){kind=icon}
 "Zombie Trailer Park"){kind=icon}