Really fun game! 5 star
Upgrade and game play very good... right up until 999 bottles. Way too repetitive for that. I think 500 bottle is plenty. -0.5 star
Also ran into the usual issue of not enough money (for healing) at beginning and too much money at by mid-end game.
Finally ran into a bug. Since 999 bottles took too long I did other missions first. Actually completed mission 29, or 30 before that one. Once mission 29 and 30 turn gold, then finished mission 26, and it turned gold.
Now am stuck at 29/30 completed mission. - 1 star