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