Just a warning about the kreds upgrade, had 20 sitting around and the x3 bonus is additive not multiplicative. So the second 10 kreds will only get you x2, not the x3 it states.
I don't know if this is a recent development, but the easy badge is bugged. I have beaten almost every enemy a second time and I am stuck at 9 enemies killed.
 "AdVenture Capitalist"){kind=icon}
 "Nano Kingdoms"){kind=icon}