It Takes Two

In Chapter 2: The Tree, play the level called "Deeply Rooted." During this level Cody and May will pass by a camera aimed at a backdrop. To the right of the camera are three photographs. The setup is pretty hard to miss, and is on the side of the main path of the level so you should at least be able to see it without needing instructions. To the left of the camera are two arrows that change the background. After selecting a background, have one player go in front of the camera and press Y in one of the three available spots in the background chosen. The other player will go over to the camera, press Y on the left available slot, and then hit A to take a picture. This will pop the achievement for the posing player, just swap places with each other and repeat the process to get the achievement for the other player. Happy hunting!

For this achievement you need to take a pic at the photo set

Chapter: The Tree
Section: Deeply Rooted

02:30 - Missable 1 - Fried Friendship
03:35 - Missable 2 - Struck A Pose
04:50 - Missable 3 - Plastic Prison Breakers
06:35 - Missable 4 - Faraway Frequencies
07:35 - Missable 5 - Look At Him Go
08:15 - Missable 6 - A Daring Devil
09:30 - Missable 7 - Break The Bank
10:25 - Missable 8 - Snackosaurus
11:10 - Missable 9 - On Rails Experience
11:40 - Missable 10 - Realize Your Art
13:10 - Missable 11 - Platforming Prodigy
14:25 - Missable 12 - Force Triangulated
17:10 - Missable 13 - Mood Swing
17:45 - Missable 14 - Lost and Found
19:30 - Missable 15 - Terror Of The Seven Seas
20:15 - Missable 16 - Something Fishy
21:15 - Missable 17 - Bug Sized Relaxation
23:55 - Missable 18 - Meditation Maestro

Achievement Walkthrough:

In the level "Deeply Rooted" of Chapter 2: The Tree, Use the camera to take a photo and get the achievement. Here is a video to help you :

Try using the camera in "Deeply Rooted.

This is completed in the chapter The Tree - Deeply Rooted. You will slide down a part of the tree and come to an open area with a camera and scenery. Change the scenery to whatever you like and then press Y to pose in the scenery. Your coop partner will need to take a picture of you for the achievement. Don't forget to take a picture of them too!

Here is a full walkthrough of the game with all achievements / trophies and minigame locations, including timestamps below!


Timestamps:

0:03 Minigame 1/25 - Whack A Cody (The Shed - The Depths)
0:28 Minigame 2/25 - Flip The Switch (The Shed - The Depths)
0:59 Fried Friendship Achievement / Trophy (The Tree - Captured)
2:05 Minigame 3/25 - Tug Of War (The Tree - Captured)
2:36 Struck A Pose Achievement / Trophy (The Tree - Deeply Rooted)
3:12 Minigame 4/25 - Plunger Dunger (The Tree - Deeply Rooted)
3:38 Minigame 5/25 - Tank Brothers (Rose's Room - Pillow Fort)
4:04 Plastic Prison Break Achievement / Trophy (Rose's Room - Pillow Fort)
5:30 Minigame 6/25 - Spacewalk (Rose's Room - Spaced Out)
6:15 Minigame 7/25 - Laser Tennis (Rose's Room - Spaced Out)
6:50 Faraway Frequencies Achievement / Trophy (Rose's Room - Spaced Out)
8:26 Look At Him Go Achievement / Trophy (Rose's Room - Spaced Out)
9:08 A Daring Devil Achievement / Trophy (Rose's Room - Hopscotch)
9:42 Minigame 8/25 - Rodeo (Rose's Room - Hopscotch)
10:00 Minigame 9/25 - Feed The Reptile (Rose's Room - Hopscotch)
10:27 Breaking The Bank Achievement / Trophy (Rose's Room - Hopscotch)
11:09 Minigame 10/25 - Batting Team (Rose's Room - Hopscotch)
11:30 Snackosaurus Achievement / Trophy (Rose's Room - Dino Land)
12:16 Minigame 11/25 - Birdstar (Rose's Room - Once Upon A Time)
12:48 On The Rails Achievement / Trophy (Rose's Room - Once Upon A Time)
13:35 Realize Your Art Achievement / Trophy (Rose's Room - Once Upon A Time)
14:29 Minigame 12/25 - Bomb Run (Cuckoo Clock - Gates of Time)
15:09 Platforming Prodigy Achievement / Trophy (Cuckoo Clock - Gates of Time)
15:54 Minigame 13/25 - Horse Derby (Cuckoo Clock - Gates of Time)
16:16 Force Triangulated Achievement / Trophy (Cuckoo Clock - Gates of Time)
17:39 Lost And Found Achievement / Trophy (Snow Globe - Winter Village)
19:12 Mood Swing Achievement / Trophy (Snow Globe - Winter Village)
20:02 Minigame 14/25 - Icicle Throwing (Snow Globe - Winter Village)
20:35 Minigame 15/25 - Snow Warfare (Snow Globe - Winter Village)
21:27 Minigame 16/25 - Shuffle Board (Snow Globe - Winter Village)
22:35 Something Fishy Achievement / Trophy (Snow Globe - Beneath the Ice)
23:03 Terror of the Seven Seas Achievement / Trophy (Snow Globe - Beneath the Ice)
23:50 Minigame 17/25 - Ice Race (Snow Globe - Beneath the Ice)
24:31 Bug Sized Relaxation Achievement / Trophy (Garden - Green Fingers)
25:10 Minigame 18/25 - Garden Swings (Garden - Weed Whacking)
25:39 Minigame 19/25 - Larvae Basket (Garden - Weed Whacking)
26:13 Minigame 20/25 - Snail Race (Garden - Frog Pond)
26:35 Minigame 21/25 - Slotcars (The Attic - Setting the Stage)
26:56 Minigame 22/25 - Chess (The Attic - Setting the Stage)
27:08 Minigame 23/25 - Musical Chairs (The Attic - Setting the Stage)
27:37 Minigame 24/25 - Volleyball (The Attic - Symphony)
27:58 Meditation Maestro Achievement / Trophy (The Attic - Symphony)
28:28 Minigame 25/25 - Track Runner (The Attic - Setting the Stage)