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