This is a great game and all... but the whole tokens thing ruins it. People come on this website to play free flash games and have fun, not be forced to pay just to play it. Games are meant to be fun, not stressful. I rated this 1/5 mainly because of this reason.
Found a glitch where when you're upgrading the ship, click on one of the parts and then click sell you get your money back, click sell again and you get twice the money back. :)
There should be a button that skips the farming and calculates the end result depending on your stats and how many farmers there are, just to speed up the whole process because when you have really high life... It's impossible to get to the end lol