Final Fantasy I & II: Dawn of Souls

Earthgift Shrine
After defeating Lich, it's located near Temple of Chaos.
(Thanks to bucketOmadness@hotmail.com)

Hellfire Chasm
After defeating Marilith, it's located in the Dragon Islands.
(Thanks to bucketOmadness@hotmail.com)

Lifespring Grotto
After defeating Kraken, it's located near the canal by Melmond.
(Thanks to bucketOmadness@hotmail.com)

Unlock Slide Puzzle Mini-game
Defeat the pirates and get the ship in FF1. Hold A and press B repeatedly whilst on the ship to play a Slide Puzzle game.
(Thanks to quistis_clint@hotmail.com)

Unlock Sound Test
Beat Final Fantasy I and II once.
(Thanks to bucketOmadness@hotmail.com)

Unlock Toad Mini-game
Level the Toad Spell up to level 16 in FF2. The Snowcraft mini-game will change to the Toad mini-game. You can now get new prizes like, Genji equipment and a Masamune for a no-miss game.
(Thanks to quistis_clint@hotmail.com)

Whisperwind Cove
After defeating Tiamat, it's located in the rivers near the Ice Cave.
(Thanks to bucketOmadness@hotmail.com)