Rune Factory: A Fantasy Harvest Moon Cheats - Nintendo DS

Unlock Dungeon Passes
Carmite Cave - Till 100 squares on your farm.
Clemens Cave - Till 100 squares in the Toros Cave and defeat the Chimera.
Dannan Cave - Defeat the Golum in the Kasmir Ruins.
Greed Cave - Defeat the Battle Tank in the Dannan Cave.
Kasmir Ruins - Till 100 squares in the Misty Bloom Cave and defeat the Siren.
Misty Bloom Cave - Till 100 squares in Mt. Gigant and defeat the Dragon.
Mt. Gigant - Rescue Cecilia in Clemens cave and defeat the Rafflesia(the Plant).
Toros Cave - Till 50 squares in the Carmite Cave and defeat the Greater Daemon.

Farming Tools
This is to help those who does not know how to get most of the tools in the game:

Axe (boro no ono) - Talk to Bianca (Girl in the right mansion in the third part of the town) after the second day.
Fishing Rod (boro no sao) - Turn right at the first part of the town, descend the stairs and run to the end of the port. Sara will get you the rod for fishing.
Hammer (boro no hanma) - After you have plowed the 50th soil in a cave, talk to Leo (Blacksmith in the second store of the right in the first part of the town).
Scythe (boro no kama) - Talk to Rosetta (Girl in the store with a sprout) after you have plowed enough soil in the farm.