I think that the developers need too fix the spelling of the word secondary (currently spelt: secundairy). Also the button to start a game says done!? Where did that come from?
Guys, I know why you have been having trouble buying things; the reason is that if you move your mouse and click at the same time that click will not register. + if you think this should be fixed.
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 "Bloons Monkey City"){kind=icon}
 "Unreal Flash 3"){kind=icon}
 "AdVenture Capitalist"){kind=icon}
 "Diggy"){kind=icon}