Final Fantasy IV Advance Cheats

An eight floor dungeon containing weapons and armor for the party members you couldn't use for the final dungeon in the original. Once you unlock Party Switching and head back to Mysidia, you'll be informed of a new challenge at Mt. Ordeals. A scene will occur once you get there and the Cave of Trials will be accessable.

Beating the game once unlocks the Music Player. It can be accessed under "Extra" on the title screen.

Beat the game once to unlock the Lunar Ruins. Inside there will be a trial for each of your characters but to unlock these you must beat the final boss with each character atleast once.