Here is the full list of all 52 .hack//G.U. Last Recode achievements.
Obtain all achievements.
Participate in 200 or more Arena matches.
Conduct 50 or more trades with allies. (Allies will still count as allies before exchanging member addresses.)
Perform 200 or more counterattacks.
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.
Open the gallery after having collected all cards in Crimson VS in Vol. 3.
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.
Perform 200 or more Awakenings.
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.)
Perform 50 or more counterattacks.
Win 500 or more times in Crimson VS in Vol. 2 and 3.
Complete Vol. 2 Reminisce.
Alchemize 100 or more times.
Win 1000 or more battles.
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.)
Collect a total of 60 or more 1st Area Words in Vol. 1, 2, or 3. (Carrying over save data is recommended.)
Complete the "Lucky Data" campaign.
Complete the "Chase the Bounty" campaign.
Complete the "Bikman's Model" campaign.
Ride your bike for over 30 minutes.
Achieve an overall A-rank area result 50 or more times.
Perform 500 or more surprise attacks.
Complete the "Stray Mecha Grunty" campaign.
Give 30 or more gifts to allies. (Allies will still count as allies before exchanging member addresses.)
Collect a total of 60 or more 3rd Area Words in Vol. 1, 2, or 3. (Carrying over save data is recommended.)
Win 500 or more battles.
Conduct a trade with an ally. (Allies will still count as allies before exchanging member addresses.)
Participate in 50 or more Arena matches.
Perform 50 or more Awakenings.
Complete Vol. 1 Rebirth.
Perform 300 or more Rengeki attacks.
Speak to 10 or more PCs in the same volume.
Complete the "Chim's Kicker" campaign.
Give a gift to an ally. (Allies will still count as allies before exchanging member addresses.)
Perform 100 or more Rengeki attacks.
Defeat 5 or more PKers in the same volume.
Perform 100 or more surprise attacks.
Rescue Mecha Grunty 5 or more times.
Kick or use your bike to ram a Lucky Animal 5 or more times.
Win 100 or more battles.
Ride your bike.
Alchemize an item.
Kick or use your bike to ram 30 or more Chim Chims.
Achieve an overall S-rank area result.