Here is the full list of all 136 Major\Minor - there are Definitive Edition achievements.
You gave the stuffed bear to Rook.
Triggered the Jade subplot.
Completed Chapter Six.
Completed Chapter Seven.
Completed Chapter Eight.
Completed Chapter Nine.
Saw the True Ending of Major\Minor.
Completed Chapter Five.
Will he be able to keep it up?
You received some bad news.
Continued the Eclair subplot in Chapter Five.
Eclair made a big move.
So that's why he put the weapons inside.
Continued the Shock and Rocker subplot in Chapter Five.
You listened in to Singe and Kila's conversation.
She just requires more and more.
Caylen and Kabu formulated a plan.
More is revealed about Max.
Completed Chapter Four.
Eclair wants to mend relations.
Eclair will try to move on.
Discovered the truth of the convention center.
Plair or Riley...?
Triggered the Shock and Rocker subplot.
Triggered the Rocker variant of the Shock and Rocker subplot.
Met the other rocking fox, Shock.
Triggered the Acheron subplot.
Met the rocker fox himself, Rocker.
Discovered who Maxine is.
Met Inumi, Klace's little brother.
Met the hired guard, Acheron.
Met Maxine, the mysterious vixen.
Completed Chapter Three.
Riley took a major step forward.
You answered Phidget's question positively.
PB told you about The Exodus Project.
Made an important decision.
What's he doing here?
Met Righty, the mercenary.
Met Trish, the "clumsy" barmaid.
Met the innocent lapine, Phidget.
Met the lapine entrepreneur, PB.
Completed Chapter Two.
Finished the immigration questionnaire.
Met the cocky assassin, Konrad.
Met the seasoned assassin, Endymion.
Asked an important question.
Completed Chapter One.
Rook and Kila ended up getting along.
Followed after Eclair, and heard her story.
Triggered the Eclair subplot.
Met the educated avian, Jade.
Met the "quirky" ferret, Rook.
Heard Lord Plair's public address.
Met the energetic squirrel, Kila.
Learn of your greater destiny.
The most important part of a new journey.
Followed through with Jade's invitation.
Rook and Kila didn't end up getting along.
Triggered Rook's Friendship Scene.
You gave the stuffed bear to Kila.
Konrad told you about the past.
Continued the Jade subplot in Chapter Four.
You didn't listen in to Singe and Kila's conversation.
Continued the Acheron subplot in Chapter Five.
Continued the Jade subplot in Chapter Five.
Eclair met Shock.
Continued the Rocker variant of the Shock and Rocker subplot in Chapter Five.
Saw the Regular Ending of Major\Minor.