Here is the full list of all 52 .hack//G.U. Last Recode achievements.
Win 1000 or more battles.
Win 500 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.)
Win 100 or more times in Crimson VS in Vol. 2 and 3.
Achieve an overall A-rank area result 50 or more times.
Perform 300 or more Rengeki attacks.
Perform 500 or more surprise attacks.
Alchemize 100 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 "Lucky Data" campaign.
Complete the "Stray Mecha Grunty" campaign.
Ride your bike for over 30 minutes.
Complete the "Bikman's Model" campaign.
Perform 50 or more counterattacks.
Perform 50 or more Awakenings.
Complete Vol. 1 Rebirth.
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.)
Conduct 50 or more trades with allies. (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.)
Perform 100 or more Rengeki attacks.
Defeat 5 or more PKers in the same volume.
Perform 100 or more surprise attacks.
Conduct a trade with an ally. (Allies will still count as allies before exchanging member addresses.)
Complete the "Chim's Kicker" campaign.
Alchemize an item.
Win 100 or more battles.
Rescue Mecha Grunty 5 or more times.
Achieve an overall S-rank area result.
Kick or use your bike to ram a Lucky Animal 5 or more times.
Ride your bike.
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.)
Speak to 10 or more PCs in the same volume.
Obtain all achievements.
Complete Vol. 2 Reminisce.
Complete Vol. 3 Redemption.
Complete Vol. 4 Reconnection.
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 "Highway Master" campaign.
Perform 200 or more Awakenings.
Participate in 50 or more Arena matches.
Participate in 200 or more Arena matches.
Perform 200 or more counterattacks.
Perform 10 or more Avatar Awakenings.
Open the gallery after having collected all cards in Crimson VS in Vol. 3.
Watch an engagement event.
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.)
Unlock all Terminal Disc files.
View all Parody Mode content.