Here is the full list of all 49 Root Double -Before Crime * After Days- Xtend Edition achievements.
Obtained all achievements.
Viewed all scenes.
Unlocked all TIPS.
Viewed Yuuri's bonus √D Epilogue.
Viewed all endings/epilogues.
Unlocked all event CGs in Album.
Viewed Jun's bonus √D Epilogue.
Viewed Ena's bonus √D Epilogue.
Unlocked all "Beyond*BEYOND" TIPS.
Viewed all Bad Endings.
Unlocked all memories in Xtend Episode.
Opened Xtend Episode.
Viewed √D Good Ending After.
Viewed √D Good Ending BEFORE.
Set everyone's Senses to their minimum values.
Set all female characters' Senses to their minimum values.
Set Salyu's Senses to her maximum value, and set all other characters' Senses to their minimum values.
Viewed √D True Ending.
Unlocked all music tracks in Music.
Viewed Salyu's bonus √D Epilogue.
Viewed Mashiro's bonus √D Epilogue.
Viewed Kazami's bonus √D Epilogue.
Viewed √D Good Ending AFTER.
Viewed √D Good Ending Before.
Viewed √D Normal Ending 3.
Viewed √D Normal Ending 1.
Viewed √D Normal Ending 2.
Erased all malice in the RAM System.
Set everyone's Senses to their maximum values.
Viewed the RAM System tutorial.
Viewed 50% of scenes.
Unlocked 50% of TIPS.
Started √D.
Viewed √C Good Ending.
Started √C.
Viewed √B Good Ending.
Unlocked 50% of event CGs in Album.
Started √B.
Viewed √A Good Ending.
Viewed √A Normal Ending.
Unlocked 50% of music tracks in Music.
Viewed at least one Bad Ending.
Set a character's Senses to their minimum value.
Opened the MAP screen.
Viewed the Senses Sympathy System tutorial.
Set a character's Senses to their maximum value.
Opened the Senses input screen.
Opened the TIPS screen.
Started √A.