Levels 51-55

Keep the 3x multiplier for 75 seconds
''Even more control, for an even longer time. This can prove to be tough, especially if you don't have a sense of tempo. And if you don't have a sense of rhythm — boy you are gonna have problems. 4 clicks per second is enough to keep a 3x multiplier and not go over nor under.''

Use the Lucky Spin 200 times
''600 Golden Cookies. That's a lot. I'd rather wait 1,600 hours.''

Bake 10,000,000,000,000 total Cookies
''10 trillion Cookies. The prize is a huge ripoff.''

Watch 150 videos
''Look on the bright side, you're supporting redBit by watching these videos. Also, be smart about it, and don't actually watch these video ads. Take time to do something else. If you're going to complete all levels, don't watch 2 hours and 17 1/2 minutes worth of ads. Time is precious, so don't waste your life like that.''

Click the cookie 300 times in 25 seconds
''12 clicks a second, for 25 seconds. The faster, the better.''

Catch 700 Golden Cookies
''700? I bet some players completed this achievement. This is when reaction becomes a thing.''

Get 30 Cookie Volcanos
''Apparently, "volcanos" can also be spelt "volcanoes". It looks weird though, so I'd rather not spell it like that.''

Get 20 Cookie Tsunamis
Also, plural for "tsunami" is usually written as "tsunamis," but apparently, it can also be "tsunami," without an "s" at the end.

Get 100 AutoClicks
You ain't buying AutoClicks just to decorate the Cookie.

Catch 200 Cookie Snitches
''Truly hardcore. That's 200 sneaky Cookie Snitches there, waiting to be caught by the skilled players.''