10 red power berry, increase stamina

1. dig with your hoe around you field and you will eventually dig up a power berry
2. giving a flower to the harvest goddess by throwing flower into the lake near the spring mine for ten(10) days straight
3. win 900 medals from horse race and exchange it for a power berry from the mayor
4. win the horse race and the mayor will present you a power berry_happen once only
5. during winter, go to the winter mine. walk behind it and press A and you will get a power berry_the lake is frozen so you can walk on the lake
6. in winter mine, dig you way through level 19. dig around with you hoe, not smashing rock. you will find the power berry eventually
7. during winter and only winter, use your level 5 fishing rod to fish at the ocean and you will be able to fish a power berry_try few more times if you can't get it
8. win frisbee contest
9. dig your way to level 100 in spring mine and you will uncover a power berry
10.buy it from tv shopping, its the very last item you will buy from tv shopping

blue power berry, increase your fatigue

toss a cucumber a day at the lake_near winter mine during any season except winter because its frozen_for ten days straight and kappa will give you a blue power berry