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