Here is the full list of all 46 Digimon Story: Cyber Sleuth - Hacker's Memory trophies - there are 33 bronze, 10 silver, 2 gold and 1 platinum.
Collected all trophies.
Attained maximum hacker rank.
Bought at least 20 avatars at the Coin Shop.
Saw all popularity events with a Digimon character.
Defeated PileVolcamon in the offline Colosseum.
Accessed all memories of Hackers' Memory.
Collected 700 types of Digimon medals.
Cleared five Domination Battles during investigations.
Saw all popularity events with a human character.
Collected 600 types of Digimon medals.
Beat back the Vampire King in the depths of the Abyss Server.
Saved all broken Mr. Navits.
Equipped all three Battle Digimon with accessories.
Digivolved a Susanomon.
300 Digimon registered in the Digimon Field Guide.
Digivolved both Chaosmon and Chaosmon VA.
Digivolved a Hudiemon.
Got at least ten titles from online mode.
Cleared Hacker's Memory main story.
Reached Yet Another Side Chapter 18.
Reached Yet Another Side Chapter 17.
Reached Yet Another Side Chapter 16.
Reached Yet Another Side Chapter 15.
Reached Yet Another Side Chapter 14.
Solved 50 BBS cases.
Reached Yet Another Side Chapter 13.
Reached Yet Another Side Chapter 12.
Reached Yet Another Side Chapter 11.
Reached Yet Another Side Chapter 10.
Reached Yet Another Side Chapter 09.
Reached Yet Another Side Chapter 08.
Saw a popularity event for the first time.
Reached Yet Another Side Chapter 07.
Reached Yet Another Side Chapter 06.
Changed avatar in online mode for the first time.
Changed title in online mode for the first time.
Dealt 999 damage or more with a single attack.
Reached Yet Another Side Chapter 05.
Savored every flavor from the Internet cafe's coffee maker.
Reached Yet Another Side Chapter 04.
Landed a combo of three or more attacks.
Equipped a Digimon with an accessory for the first time.
Accessed a Hacker's Memory for the first time.
Reached Yet Another Side Chapter 03.
Reached Yet Another Side Chapter 02.
Reached Yet Another Side Chapter 01.