The Legend of Zelda: Oracle of Seasons Secrets (GameBoy Color)

Seasons begins as the Triforce calls out to Link from within its temple. Link approaches it, and is transported to a dark forest where he encounters a traveling group led by a dancer named Din. After Din welcomes Link to Holodrum, the sky becomes covered in black clouds. A voice from the clouds calls Din the Oracle of Seasons and refers to himself as Onox, General of Darkness. A funnel cloud drops from the sky, taking Din into its dark heights. As the tornado dissipates, the seasons of Holodrum fall into disarray and change rapidly.

Din's attendant, Impa, tells Link that they were headed for Hyrule; she instructs him to see the Maku Tree in Horon Village, the capital of Holodrum. Link finds a sword in a cave and makes his way to the tree. The Maku Tree tells Link he will need the eight Essences of Nature and gives him the Gnarled Key, which unlocks the dungeon holding the first Essence. Link retrieves the eight Essences, hidden in eight dungeons throughout Holodrum and brings them to the Maku Tree.

Secrets

Advance Shop
If you're playing on a Gameboy Advance, head to the screen with the Know-it-all Birds Hut. The other house that is normally closed will be open. Inside there is a shop that has 2 rings and a Gasha Seed. All 3 things sell for 100 rupees each.

Noble sword
To find the noble sword go to Tarm ruins in the area where there is a trunk in the middle of the screen change the season to winter and head west then change it to autumn and head west again then change it to spring and head west again and finally change it to summer and head west there you will find the noble sword.

Check out the game's alternative intro cutscene, unlocked by using a password: