Here is the full list of all 52 .hack//G.U. Last Recode achievements.
Obtain all achievements.
View all Parody Mode content.
Unlock all Terminal Disc files.
Complete Vol. 4 Reconnection.
Reach guild rank 9 by raising all books in the Book of 1000 to rank 9 in Vol. 3 after having carried over your save data from Vol. 1 and 2.
Participate in 200 or more Arena matches.
Perform 200 or more counterattacks.
Perform 200 or more Awakenings.
Watch an engagement event.
Conduct 50 or more trades with allies. (Allies will still count as allies before exchanging member addresses.)
Raise Haseo to level 150 in Vol. 3 or Vol. 4. (Using Cheat Mode does not count.)
Open the gallery after having collected all cards in Crimson VS in Vol. 3.
Complete Vol. 3 Redemption.
Alchemize 100 or more times.
Perform 10 or more Avatar Awakenings.
Complete the "Highway Master" campaign.
Finish first on any course in the "Highway Master" campaign. (After obtaining the 1st Word "Passing" in Vol. 2, you can attempt Bike Missions before beginning the campaign in Vol. 3.)
Complete Vol. 2 Reminisce.
Win 1000 or more battles.
Win 500 or more times in Crimson VS in Vol. 2 and 3.
Perform 300 or more Rengeki attacks.
Participate in 50 or more Arena matches.
Perform 500 or more surprise attacks.
Win 100 or more times in Crimson VS in Vol. 2 and 3.
Give 30 or more gifts to allies. (Allies will still count as allies before exchanging member addresses.)
Collect a total of 60 or more 2nd Area Words in Vol. 2 or 3. (Carrying over save data is recommended.)
Perform 50 or more Awakenings.
Achieve an overall A-rank area result 50 or more times.
Collect a total of 60 or more 1st Area Words in Vol. 1, 2, or 3. (Carrying over save data is recommended.)
Complete the "Chase the Bounty" campaign.
Complete the "Stray Mecha Grunty" campaign.
Complete the "Bikman's Model" campaign.
Complete the "Lucky Data" campaign.
Win 500 or more battles.
Perform 50 or more counterattacks.
Ride your bike for over 30 minutes.
Collect a total of 60 or more 3rd Area Words in Vol. 1, 2, or 3. (Carrying over save data is recommended.)
Complete Vol. 1 Rebirth.
Defeat 5 or more PKers in the same volume.
Complete the "Chim's Kicker" campaign.
Perform 100 or more Rengeki attacks.
Perform 100 or more surprise attacks.
Rescue Mecha Grunty 5 or more times.
Conduct a trade with an ally. (Allies will still count as allies before exchanging member addresses.)
Win 100 or more battles.
Alchemize an item.
Kick or use your bike to ram a Lucky Animal 5 or more times.
Give a gift to an ally. (Allies will still count as allies before exchanging member addresses.)
Kick or use your bike to ram 30 or more Chim Chims.
Ride your bike.
Speak to 10 or more PCs in the same volume.
Achieve an overall S-rank area result.