Here is the full list of all 52 .hack//G.U. Last Recode achievements.
Obtain all achievements.
Complete Vol. 1 Rebirth.
Complete Vol. 2 Reminisce.
Complete Vol. 3 Redemption.
Complete Vol. 4 Reconnection.
Achieve an overall S-rank area result.
Achieve an overall A-rank area result 50 or more times.
Conduct a trade with an ally. (Allies will still count as allies before exchanging member addresses.)
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.)
Ride your bike.
Ride your bike for over 30 minutes.
Alchemize an item.
Alchemize 100 or more times.
Rescue Mecha Grunty 5 or more times.
Kick or use your bike to ram a Lucky Animal 5 or more times.
Kick or use your bike to ram 30 or more Chim Chims.
Speak to 10 or more PCs in the same volume.
Defeat 5 or more PKers in the same volume.
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 "Stray Mecha Grunty" campaign.
Complete the "Lucky Data" campaign.
Complete the "Chim's Kicker" campaign.
Complete the "Bikman's Model" campaign.
Complete the "Chase the Bounty" campaign.
Complete the "Highway Master" campaign.
Perform 100 or more Rengeki attacks.
Perform 300 or more Rengeki attacks.
Perform 100 or more surprise attacks.
Perform 500 or more surprise attacks.
Perform 50 or more Awakenings.
Perform 200 or more Awakenings.
Win 100 or more battles.
Win 500 or more battles.
Win 1000 or more battles.
Participate in 50 or more Arena matches.
Participate in 200 or more Arena matches.
Perform 50 or more counterattacks.
Perform 200 or more counterattacks.
Perform 10 or more Avatar Awakenings.
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.
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.
Collect a total of 60 or more 1st Area Words in Vol. 1, 2, or 3. (Carrying over save data is recommended.)
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 3rd Area Words in Vol. 1, 2, or 3. (Carrying over save data is recommended.)
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.