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