Here is the full list of all 25 Defragmented achievements.
Kill 1,000 enemies
Begin New Game Plus
Side with a young friend
Earn 20 "S" ranks
Open 500 containers
Earn 10 "S" ranks
Side with an old friend
Complete Act IV
Reset your talents
Reach level 30
Complete Act III
Complete a mission on Hardwired difficulty
Reach level 20
Complete Act II
Complete Act I
Visit Deal-EO World for the first time
Reach level 10
Acquire a legendary item
Complete "The Beginning"
Earn 1 "S" rank
Upgrade Deal-EO World to rank 6
Acquire 1,000,000 Credits
Acquire 500 Deal-EO Coins
Fire 10,000 bullets