No missable achievements (plus 20 unknown)
Sign in with Steam or Xbox to track your progress, and:
Found your first ticket.
Crashed the game.
Unlocked Pony Lasers.
Found 3 tickets.
Destroyed the first Core File.
Learned a secret of your past.
Unlocked Pony Wings.
Destroyed the second Core File.
Destroyed the third Core File.
Escaped the arcade.
Learned another secret of your past.
Found 7 tickets.
Learned a third secret of your past.
Found 14 tickets.
Found all 24 tickets.
Learned every secret of your past.