Here is the full list of all 103 Digimon Story Cyber Sleuth: Complete Edition achievements.
Hacker's Memory: Reached Yet another side_chapter01.
Hacker's Memory: Reached Yet another side_chapter02.
Hacker's Memory: Reached Yet another side_chapter03.
Hacker's Memory: Reached Yet another side_chapter04.
Hacker's Memory: Reached Yet another side_chapter05.
Hacker's Memory: Reached Yet another side_chapter06.
Hacker's Memory: Reached Yet another side_chapter07.
Hacker's Memory: Reached Yet another side_chapter08.
Hacker's Memory: Reached Yet another side_chapter09.
Hacker's Memory: Reached Yet another side_chapter10.
Hacker's Memory: Reached Yet another side_chapter11.
Hacker's Memory: Reached Yet another side_chapter12.
Hacker's Memory: Reached Yet another side_chapter13.
Hacker's Memory: Reached Yet another side_chapter14.
Hacker's Memory: Reached Yet another side_chapter15.
Hacker's Memory: Reached Yet another side_chapter16.
Hacker's Memory: Reached Yet another side_chapter17.
Hacker's Memory: Reached Yet another side_chapter18.
Hacker's Memory: Cleared Hacker's Memory main story.
Hacker's Memory: Beat back the Vampire King in the depths of the Abyss Server.
Hacker's Memory: Accessed a Hacker's Memory for the first time.
Hacker's Memory: Accessed all memories of Hackers' Memory.
Hacker's Memory: Attained maximum hacker rank.
Hacker's Memory: Solved 50 BBS cases.
Hacker's Memory: 300 Digimon registered in the Digimon Field Guide.
Hacker's Memory: Collected 600 types of Digimon medals.
Hacker's Memory: Collected 700 types of Digimon medals.
Hacker's Memory: Dealt 999 damage or more with a single attack.
Hacker's Memory: Landed a combo of three or more attacks.
Hacker's Memory: Saved all broken Mr. Navits.
Hacker's Memory: Defeated PileVolcamon in the offline Colosseum.
Hacker's Memory: Cleared five Domination Battles during investigations.
Hacker's Memory: Digivolved a Susanoomon.
Hacker's Memory: Digivolved a Hudiemon.
Hacker's Memory: Digivolved both Chaosmon and Chaosmon VA.
Hacker's Memory: Equipped a Digimon with an accessory for the first time.
Hacker's Memory: Equipped all three Battle Digimon with accessories.
Hacker's Memory: Changed avatar in online mode for the first time.
Hacker's Memory: Bought at least 20 avatars at the Coin Shop.
Hacker's Memory: Changed title in online mode for the first time.
Hacker's Memory: Got at least ten titles from online mode.
Hacker's Memory: Saw a popularity event for the first time.
Hacker's Memory: Saw all popularity events with a human character.
Hacker's Memory: Saw all popularity events with a Digimon character.
Hacker's Memory: Savored every flavor from the Internet cafe's coffee maker.
Cyber Sleuth: It's me, Mr. Navit! You enjoying Digimon Capture? Can't wait to see what you guys get up to!
Cyber Sleuth: Never thought I'd get an assistant like this. And that half-cyber body...heh. Looks like things are about to get interesting.
Cyber Sleuth: EDEN Syndrome, and that gloomy woman... Your fate as a cyber sleuth has only just begun!
Cyber Sleuth: Why did Agumon and the other Digimon come to EDEN? Better think on it all night long! Not that there's night in EDEN...
Cyber Sleuth: Eaters, a "white ghost boy," and now a cyber sleuth? Cool! About time I got in on this party!
Cyber Sleuth: Kamishiro's pulling the strings behind the hacker revolt? If that's true, I gotta do something as leader of the Zaxons!
Cyber Sleuth: All things change, and more phenomena are explained every day! Youthful curiosity plays a key role in this, don't you think? Tee-hee...
Cyber Sleuth: That ugly thing looked like it hasn't given up. Bring it anytime, I'll clean your clock.
Cyber Sleuth: That conceited Arata's proposing infiltration, but these are two separate things! Time for the Rebels!
Cyber Sleuth: The first victim of EDEN Syndrome...just who is it? Also...that coffee isn't fit for human consumption...
Cyber Sleuth: My name is Omegamon. I must convey to you the crisis approaching your world and mine!
Cyber Sleuth: What the?! Just as I think I've saved Yuuko, how come you're the one who's disappeared now!?
Cyber Sleuth: That Arata... What's he thinking of doing on his own!? Hurry back, Little Kyoko... They're gonna need your help!
Cyber Sleuth: You found my lil' partner! Not bad! I'll call you again if something comes up! ...Refuse, and I'll arrest you.
Cyber Sleuth: I know you must be worried about Arata Sanada's whereabouts, but there's something you gotta do now. ...Time for a counterattack.
Cyber Sleuth: Me 'n' Veevee are happy to have more allies! ...But wait, what happened to the kid!? That right arm doesn't look good, ya know!?
Cyber Sleuth: People can't help but laugh at the unsightliness that accompanies change, yes? It's a much better look than succumbing to sadness, though.
Cyber Sleuth: Before I knew it I was back in Akihabara...but why just me? Does this mean... Did I get revenge for my father?
Cyber Sleuth: The five of us are childhood friends? Kyoko is a Digimon!? Wasabi, hatcho miso and cream cheese!? Argh, my head!!!
Cyber Sleuth: Fools. Every last one of you is a total fool. ...Even so, you're my friends. Let's go, our fifth friend is waiting for us.
Cyber Sleuth: See you tomorrow!
Cyber Sleuth: Attained maximum sleuth rank.
Cyber Sleuth: Solved 50 cases.
Cyber Sleuth: 50 Digimon registered in the Digimon Field Guide.
Cyber Sleuth: 100 Digimon registered in the Digimon Field Guide.
Cyber Sleuth: 200 Digimon registered in the Digimon Field Guide.
Cyber Sleuth: Collected 50 types of Digimon medals.
Cyber Sleuth: Collected 100 types of Digimon medals.
Cyber Sleuth: Collected 200 types of Digimon medals.
Cyber Sleuth: Collected 300 types of Digimon medals.
Cyber Sleuth: Collected 400 types of Digimon medals.
Cyber Sleuth: Collected 500 types of Digimon medals.
Cyber Sleuth: Dealt 999 damage or more with a single attack.
Cyber Sleuth: Landed a combo of three or more attacks.
Cyber Sleuth: Fought in over 500 battles.
Cyber Sleuth: Fought in over 1,000 battles.
Cyber Sleuth: Won the Platinum Cup in the Offline Colosseum.
Cyber Sleuth: Won the Legendary Cup in the Offline Colosseum.
Cyber Sleuth: Won the Masters Cup in the Offline Colosseum.
Cyber Sleuth: Maximized CAM of a single Digimon.
Cyber Sleuth: Maximized CAM of 30 Digimon.
Cyber Sleuth: Maximized ABI of a single Digimon.
Cyber Sleuth: Maximized ABI of 10 Digimon.
Cyber Sleuth: Raised a single Digimon to the maximum level (level 99).
Cyber Sleuth: Digivolved 30 Digimon to Ultimate.
Cyber Sleuth: Digivolved 30 Digimon to Mega.
Cyber Sleuth: Acquired over one million yen.
Cyber Sleuth: Got five islands on your DigiFarm.
Cyber Sleuth: Raised the rank of a Farm Island to maximum.
Cyber Sleuth: Raised the rank of all Farm Islands to maximum.
Cyber Sleuth: Filled one Farm Island with Digimon.
Cyber Sleuth: Filled all Farm Islands with Digimon.
Cyber Sleuth: Fed Digimon 100 times.
Cyber Sleuth: Replied to 30 DigiLine messages.
Cyber Sleuth: Answered 20 DigiLine quiz questions correctly.
Cyber Sleuth: Achieved 30 victories in Colosseum battles.
Hacker's Memory: Acquired all achievements.
Cyber Sleuth: Acquired all achievements.