Full list of all 11 Storm Boy achievements worth 1,000 gamerscore. It takes around 0-0.5 hours to unlock all of the achievements on Xbox One.
All 3 Pelicans were angry during the Feeding Mini-Game
Swam to the deepest part of the Ocean
Played each Mini-Game once through the Remember menu.
Said Goodbye to Mr Percival
Saved the Sailors from a Sinking Ship
Mr Percival fetched the ball from underwater 3 times
Left an artwork on the beachfront
Remained underwater for the maximum amount of time
Fed all 3 pelicans
Found 20 Cockles
Changed Direction in the Sanctuary Dream mini-game 15 times