To earn this trophy, you are required to find 30 hidden Monokuma (5 in each chapter).
These can be done during Free Time (Chapter 6 can be done while on a time limit, should you fail, you don't lose the Monokuma figure that you found).
Once you found a hidden Monokuma, aim it manually and press triangle.
Some Monokuma's can be found during a Trial Mini Games, but because of a healthy time limit, take your time otherwise, you'll need to replay it once again.
I'll put the guide in spoiler mode to keep the guide tidy.
*** Spoiler - click to reveal ***Chapter 1
Monokuma #1: Found in the Game Room in the basement. Look in the corner near the arcade cabinets.
Monokuma #2: On a sink in the Girl’s Bathroom, in the Main School Building.
Monokuma #3: Found on a table between the Gym and the Dining Hall.
Monokuma #4: Outside the Dorm on a table.
Monokuma #5: The fifth and final one is found in one of the orbs in the Hangman's Gambit minigame about 20 seconds in after taking control of Shuichi.
Chapter 2
Monokuma #6: On a shelf in the Storage Shed Warehouse area. Found to the upper left as you enter.
Monokuma #7: Smash a bench in the Ultimate Inventor’s Lab to find a hidden Monokuma.
Monokuma #8: From the side entrance to the Dining Area from the Dormitory, look under the fence in the grass to the left of the footpath.
Monokuma #9: Go to the third floor, and look under a table outside Maki’s Lab.
Monokuma #10: The fifth and final one is found during the first Psyche Taxi minigame at the third phase. You need to hit it with the Taxi in the right-hand lane.
Chapter 3
Monokuma #11: In the Boiler Room, Gonta will remove the manhole. Found in the center.
Monokuma #12: Found on the steps of the Trial Grounds (outside the Hall of Justice).
Monokuma #13: In the Ultimate Pianist’s Room on the second floor, by the piano.
Monokuma #14: Found in the grass to the right of the Monosutra Hotel.
Monokuma #15: Located in a random corner of the first Mind Mine minigame.
Chapter 4
Monokuma #16: In the basement by the stairwell.
Monokuma #17: Found in the dormitory by the stairs, on the Boy’s Side.
Monokuma #18: On a ledge on the second floor of the Main School Building, looking over the main entranceway.
Monokuma #19: Inside the Ultimate Aikido’s room.
Monokuma #20: The fifth and final one is found in one of the orbs in both of the Hangman's Gambit minigames about 20 seconds in.
Chapter 5
Monokuma #21: Found in the center of the Ultimate Robot’s Room.
Monokuma #22: Outside the Ultimate Detective’s Room on the fifth floor of the Main School Building.
Monokuma #23: Fourth Floor of the Main School Building, on the headless statue near the stairs to the fifth floor.
Monokuma #24: In the Ultimate Cosplayer’s Room, to the left and on the film set.
Monokuma #25: Found during the first Psyche Taxi minigame at the second phase. You need to hit it with the Taxi in the middle left lane.
Chapter 6
Monokuma #26: The first one is in the middle of the spiral staircase to the Sixth Floor of the Main School Building.
Monokuma #27: The second one is outside floating around in circles in the Backyard area where the Death Road of Despair is located.
Monokuma #28: The third one is found before going down to the cave that Keebo creates just after the investigation begins. You shall go to the right entrance, then instead of going straight, turn left to the end of the corridor, and there at the left, is the Hidden Monokuma.
Monokuma #29: The fourth one is on the staircase when you get to the 5th floor.
Monokuma #30: After the Mastermind Reveal, the final Monokuma is placed randomly in another Mine Mind minigame (The Logo Question).
I Hope this guide helps, if theirs anything that isn't clear, please comment!
if you require images as a reference for your guide, check out this website:
http://danganronpa.wikia.com/wiki/Hidden_Monokumas/Danganron...Reference 2 for the structure of this guide-
http://gameranx.com/features/id/122566/article/danganronpa-v...