its actually VERY easy to get 2000000 if you have at least about 25-30 when the line is at around the left and if you KEEP it that way (of course gradually incresing) and itll also help if you get EVERY purple shape as you can
i agree with round peg and alsothe thing thats better about this game then its sequel is that ur barricade has 100 health instead of like 55 and you can get more survivors