Here is the full list of all 55 AKIBA'S TRIP: Hellbound & Debriefed achievements.
Obtain all trophies.
Learn basic stripping technique.
Complete your first job for NIRO.
Take down the sinister SGV.
Stop DBP's plans.
Encounter Mother Soul in Akihabara.
Obtain the Coexistence Ending.
Obtain the NIRO Ending.
Obtain the Shadow Soul Ending.
Obtain the Sister Ending.
Obtain an ending without Yu dying.
Obtain an ending without Mother Soul dying.
Save Suzuna's life.
Watch all endings.
Clear the game on Gamer difficulty or higher.
Clear the game on Otaku difficulty or higher.
Clear the game on Holic difficulty or higher.
Remove 50 articles of clothing.
Remove 250 articles of clothing.
Chain-strip 12 articles of clothing.
Perform 250 strip combos.
Rip 50 articles of clothing.
Clear 10 side missions.
Clear 30 side missions.
Collect 15 different types of weapon.
Collect 50 different types of weapon.
Collect 15 different types of headwear.
Collect 25 different types of upper wear.
Collect 75 different types of upper wear.
Collect 25 different types of lower wear.
Collect 75 different types of lower wear.
Collect 20 different types of accessory.
Obtain the three sacred treasures.
Obtain 3 types of flyers.
Reach level 30.
Save up 1 million yen.
Use Tungsten on a weapon.
Use Synthetic Fiber on an outfit.
Raise a weapon's stats to 999.
Raise an outfit's stats to 999.
Dress your sister up in the legendary Cindy outfit.
Unlock women's clothing.
Change clothes on every part of your body.
Purchase something from every shop.
Gain Amewata's acceptance as an agent.
Become completely hated by the residents of Akihabara.
Obtain 50 nicknames.
Clear all of the Master's trials.
Battle Sara and obtain the Maid's Secret.
Have Mr. Yatabe build a PC from junk parts.
Obtain all figures.
Wear the complete Bear Costume.
Play a minigame at Studio G3.
Defeat ???
Supply 200 types of clothing to rebuild the clothing shop.