Here is the full list of all 17 Little Briar Rose achievements.
Finish the game with the first prince.
Listen to all of Navi's advices.
Finish the game with the second prince (Stephen).
Die seven times.
Die three times in the same puzzle.
Don't use hints in the third maze puzzle.
Don't use hints in the second maze puzzle.
Don't use hints in the first maze puzzle.
Finish the game once.
Kiss the Princess with the wrong prince.
Don't use hints in the fourth maze puzzle.
Help the Spriggan date the Fairy.
Collect every item.
Capture the Golden Fish.
Obtain a Perfect result in the cooking game.
Obtain a Perfect result in the sewing game.
Choose the right decoration for the Gnomes' house.