You need to knock over 5 out of the 12 Can Pyramids that can be found during the course of the game in the following chapters.
1. Episode 1: Nightmare - A Writer’s Dream
2. Episode 1: Nightmare - Waking Up to a Nightmare
3 & 4. Episode 2: Taken - Elderwood National Park
5. Episode 3: Ransom - On The Run
6. Episode 3: Ransom - Mirror Peak
7. Episode 4: The Truth - Cauldron Lake Lodge
8. Episode 4: The Truth - Anderson Farm
9. Episode 5: The Clicker - Night Life in Bright Falls
10. Episode 5: The Clicker - Bright Falls Light & Power
11 & 12. Episode 6: Departure - On the Road to Cauldron Lake
The Alan Wake Color Coded Collectibles Guide by Tyger7
will help you find the location of each Can Pyramid.
You can find out how many Can Pyramids you have found so far: either from the main menu select Extras and and then Statistics; or while playing press the Start button and select Statistics. Full list of Statistics and the related achievementsKills with revolver Kills with flare gun Kills with shotgun Kills with hunting rifle Kills with flashbangs Kills with vehicles Indirect kills Poltergeist objects destroyed
The They're Heeeeeere! achievement in Alan Wake worth 24 pointsInanimate objects shouldn't move of their own accord. Put a stop to this affront, oh, say, 20 times.Birds killed Batteries used
25/91 Manuscript pages found
91/91 Manuscript pages found
106/106 Manuscript pages found
The Collector's Edition achievement in Alan Wake worth 154 pointsFind all of the manuscript pages in the game, including the ones in Nightmare mode. You can check which ones you have found from the Manuscript menu.
25/100 Coffee thermoses found
100/100 Coffee thermoses found
5/12 Can pyramids knocked over
The Carny achievement in Alan Wake worth 18 pointsKnock over five can pyramids.
5/30 Chests found
30/30 Chests found
11/11 Radio shows found
The KBF-FM achievement in Alan Wake worth 58 pointsListen to all of the radio shows. You can check which ones you have found from the Extras - Playback - Radios menu.
14/14 TV shows found
25/25 Signs found
10/10 Alarm clocks found
The Tick Tock achievement in Alan Wake worth 65 pointsSpecial 1: Discover 10 hidden alarm clocks.
6/6 Cardboard standees found
10/10 Night Springs video games found