Levels 36-40

Buy the Giant Rolling Pin upgrade
Costs 400,000 Cookies.

Get 40 Cookie Farms
''Whoever helped create this game obviously has consideration to word choice, because this achievement in the actual game is singular. ("Get 40 Cookie Farm.") I try to keep the wording they use as similar as possible, no matter the inconsistencies, but this is too far, and I will make sure justice prevails. Shaking my head at the lack of attention to wording.''

Increase production to 500,000 CPS
How to get 1 million Cookies in 2 seconds (or less).

Have a 30h Cookie Addiction
''Congratulations! You have now played for a total of over a day! Or at the very least, had the app open for over a day! (For Justin Munoz, the app is open a very good percentage of the time they're editing on this wiki, so their Cookie Addiction includes a lot of Wiki editing.)''

Watch 80 videos
''Too easy. Too, too easy. (At least for some players.)''

Open the app between 4 am and 4:30 am
''I suggest, if you haven't done this already, just adjust the time on your phone to a time between 4 AM and 4:30 AM, open the app, and boom. There's your achievement. Don't wake yourself up 4 in the morning just to do this achievement. As a matter of fact, if you ever see any game with a similar achievement, just adjust the time on your phone.''

In other words: Do not let achievements deprive you of sleep.

Click the cookie 100 times in 8 seconds
''12.5 clicks per second. If you are using a good clicking technique, you should have finished this achievement a long time ago.''