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