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