Ruin The Fun
Ruin The Fun is a function that instantly gives you all the upgrades (including the debug upgrades), all the achievements, and 999,999,999,999,999,999 cookies. To execute this function, simple use:
Game.RuinTheFun();

Gaining Cookies
To change the amount of cookies in bank, use:
Game.cookies = <amount>;
To add more cookies to the existing amount in bank, use:
Game.Earn(<amount adding>);
Removing Cookies
To remove a specific amount of cookies, use:
Game.cookies -= <amount removing>;
Infinity Cookies
To obtain an infinite amount of cookies, use:
Game.cookies = Infinity;
Changing CpS
To change the CpS (will self-correct when new buildings/upgrades are bought), use:
Game.cookiesPs = <CpS>;
To make the effect stay until the page is refreshed, use:
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Auto-Click Big Cookie
To auto-click the big cookie at a set interval, use:
setInterval(Game.ClickCookie, <milliseconds interval>);
Note that this will be in effect until you refresh the page.
Faster Auto-Click
The auto-click cheat above can only click as fast as the CPU can handle. To produce an even faster effect, use:
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Auto-Click Only During Click Frenzy
To enable auto-click only during the Click Frenzy, use: