No missable achievements (plus 8 unknown)
Sign in with Steam or Xbox to track your progress, and:
Collect all three treasures in the first level
Watch the entire game
Complete the game on Original Mode
See the "You Missed a Treasure Again!" screen.
Complete the game in Director's Cut
Collect the Butterfly Treasure on the first try
Complete the game in Original Mode, no move guide.
Complete the game in Director's Cut, no move guide.