Secrets (Harvest Moon: 2 GBC)

Power Berries
Where'd these thing go in recent games, anyway? You don't have to do anything special for them this time. They're just scattered around the field. Get to diggin'!

Golden Chicken
Simply trade a chicken to someone else at the Library. If you trade right back however, the chicken will return to normal, so it's best for both sides to cooperate for everyone to end up with a gold chicken.

Avoiding Storms
Ask Ken to do an extension on a day the TV says that a storm is coming and the next day his visit will automatically cancel it out. Neat.

Treasure Map
I've never completed this one, but after becoming friends with Mary you could receive a treasure map from her when you visit. First you have to put it together though! Luckily, all you basically have to do is move around the pieces on the edge, so it's nothing complicated. After piecing together the map you can get a clue about the treasure in your Q&A menu.

"The treasure is buried under the flower that doesn't wither" refers to Daisy, so investigate the flowers outside her shop and you'll get another clue. "Superimpose the two maps and... Here's a hint: the Trade Menu" This is fairly obvious, but you need to have a friend who has a copy, or have another copy yourself to do it. Whenever you're ready, go to the Library computer's trade center and combine the two maps. Once you do this, you can follow the last clue and obtain the Miracle Glove from the top area in the mountains.