Here is the full list of all 12 Heaven Island - there are VR MMO achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Collect all 70 shells
Collect 5 shells
Collect 15 shells
Collect 30 shells
Collect 60 shells
Collect 1 apple
Collect 5 apple
Collect 15 apples
Collect 30 apples
Collect 60 apples
Collect 70 apples
Collect 1 shell