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.
Defeated PileVolcamon in the offline Colosseum.
Accessed all memories of Hackers' Memory.
Collected 700 types of Digimon medals.
Collected 600 types of Digimon medals.
Equipped all three Battle Digimon with accessories.
Got at least ten titles from online mode.
Beat back the Vampire King in the depths of the Abyss Server.
Saved all broken Mr. Navits.
Digivolved a Hudiemon.
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.
Saw all popularity events with a Digimon character.
Digivolved a Susanomon.
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.
Digivolved both Chaosmon and Chaosmon VA.
Saw all popularity events with a human character.
300 Digimon registered in the Digimon Field Guide.
Reached Yet Another Side Chapter 08.
Reached Yet Another Side Chapter 07.
Solved 50 BBS cases.
Reached Yet Another Side Chapter 06.
Savored every flavor from the Internet cafe's coffee maker.
Cleared five Domination Battles during investigations.
Reached Yet Another Side Chapter 05.
Reached Yet Another Side Chapter 04.
Dealt 999 damage or more with a single attack.
Landed a combo of three or more attacks.
Accessed a Hacker's Memory for the first time.
Saw a popularity event for the first time.
Reached Yet Another Side Chapter 03.
Changed title in online mode for the first time.
Changed avatar in online mode for the first time.
Reached Yet Another Side Chapter 02.
Equipped a Digimon with an accessory for the first time.
Reached Yet Another Side Chapter 01.