I do enjoy the pop culture references in the country names.
Carpatia being a reference to vigo from ghostbusters 2
Juria being a reference to Yuria from Fist of the North Star
So on and so forth.
A really neat feature, well mainly for the sake of the trade sheep, would be the ability to just hold the arrow in place while holding down the left mouse button.
I really wish there was a "hard mode" type of thing where I could continue playing even after I've finished. I kept getting lucky and got all the gears before I could even buy the matrosov.
there really needs to be a hotkey for the upgrade menu while in a level. if I'm taking the time to click on it, i'm losing bloons that I need for money!
seriously, the scrolls need to be tweaked or something. I usually end up clicking on a scroll and wasting it when I'm trying to pick up a coin or mana bottle. it's extremely frustrating when this happens.
the game still gets a solid 5 from me, yet, I can't help but feel that this went a little bit far for the first sequel, looking at the upgrades screen. it just feels too complicated.