Here you will find a list of all the Power Berry locations in Harvest Moon (GB).
Year 1 Power Berry Locations[]
1 - Talk to and give a mushroom to the Harvest Sprites every day after unlocking the cavern under the tool shed.
2 - Plow your field.
3 - Plow your field.
4 - Plow your field.
5 - Plow your field.
Year 2 Power Berry Locations[]
6 - Your field will be expanded. Plow your field.
7 - Your field will be expanded. Plow your field.
8 - In the far northwest of the pickax room. It will be 7 units right and 4 down from there. You must have the pickax.
9 - In the secret room, it is in the 3rd square down from the top left. You must have the pickax.
10 - It is in the 3rd space down from the top right of the secret room. You must have the pickax.