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.
Bought at least 20 avatars at the Coin Shop.
Attained maximum hacker rank.
Accessed all memories of Hackers' Memory.
Saved all broken Mr. Navits.
Collected 700 types of Digimon medals.
Saw all popularity events with a Digimon character.
Saw all popularity events with a human character.
Cleared five Domination Battles during investigations.
Defeated PileVolcamon in the offline Colosseum.
Collected 600 types of Digimon medals.
Beat back the Vampire King in the depths of the Abyss Server.
Digivolved a Hudiemon.
Cleared Hacker's Memory main story.
Reached Yet Another Side Chapter 18.
Digivolved both Chaosmon and Chaosmon VA.
Reached Yet Another Side Chapter 17.
Digivolved a Susanomon.
Reached Yet Another Side Chapter 16.
Reached Yet Another Side Chapter 15.
300 Digimon registered in the Digimon Field Guide.
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.
Changed title in online mode for the first time.
Changed avatar in online mode for the first time.
Equipped all three Battle Digimon with accessories.
Got at least ten titles from online mode.
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.
Reached Yet Another Side Chapter 05.
Savored every flavor from the Internet cafe's coffee maker.
Dealt 999 damage or more with a single attack.
Reached Yet Another Side Chapter 04.
Landed a combo of three or more attacks.
Accessed a Hacker's Memory for the first time.
Reached Yet Another Side Chapter 03.
Reached Yet Another Side Chapter 02.
Equipped a Digimon with an accessory for the first time.
Reached Yet Another Side Chapter 01.