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