There's a bug where you can just reset the board manually and you get around 2-3x the number of mines you would get from a normal completion of the board for every reset, so you could just span reset to get a lot of mines.
Also, I can't seem to be able to prestige, I click on the 'prestige' button and nothing happens
And why are the red and green items the same price and value? It's just simply better to sell to the Warsaw pact nations, get more money and unlock essentially the same things