Rygar: The Legendary Adventure
Die three times on the normal difficulty setting to unlock the easy difficulty setting.
Successfully complete the game (including Necromandio Cave) on the normal difficulty setting to unlock the hard difficulty setting.
Successfully complete the game (including Necromandio Cave) on the hard difficulty setting to unlock the legendary difficulty setting.
Successfully complete the game (including level 30 of Necromandio Cave) on the normal difficulty setting to unlock Guitarmor.
Successfully complete the game (including level 30 of Necromandio Cave) on the hard difficulty setting with an "A" rank.
Successfully complete the game (including Necromandio Cave) on the easy or higher difficulty setting to unlock armor shaped like a pizza.
Successfully complete the game (including Necromandio Cave) on the hard difficulty setting.
Successfully complete the game (including level 30 of Necromandio Cave) on the legendary difficulty setting with an "A" rank.
Successfully complete the game (including Necromandio Cave) on the legendary difficulty setting.
Successfully complete the game (including Necromandio Cave) on the easy or higher difficulty setting to unlock One World mode.
Successfully complete the game and save it. Start a new game on any difficulty setting to begin with the same attack and defense statistics and Mystic Stones from your previous attempt.
While playing the game, hold Start + Select.
When you face Icarus the second time (on the floating island), note the color of the lightning around him. If it is red, use any weapon besides the Hades. If it is yellow, use any weapon besides the Haven. If it is blue, use any weapon other than the Sea. If you use the same color as him, you will not do any damage.