No missable achievements (plus 10 unknown)
Sign in with Steam or Xbox to track your progress, and:
Feed the cow by hand
Complete your journey.
Sit on the swing.
Overcome your fear of the dog.
Feed the ducks.
Get a chicken across the bridge.
Follow and free the flower.
Collect all 5 butterflies.
Discover everything's true identity.
Find all Nani experiences.