Unlock the Unearthed Challenge in Ninja Gaiden by inputting a code. Details on Missions 51-55, including enemies, bosses, and prizes.
To unlock the 5 Extra Missions known as the "Unearthed Challenge" in Ninja Gaiden's Mission Mode, navigate to the Mission Mode menu and press UP, DOWN, LEFT, DOWN, RIGHT, UP, SQUARE. These missions will then appear above the "Eternal Legend" mission.
Eternal Legend is a series of 5 missions counted as one in Ninja Gaiden. After completing each mission, the game allows you to save your progress between phases. Each mission is timed in phases, with specific sets of enemies to kill. After each set is killed, a new set will appear, marking a new phase. The phase ends after defeating the boss for that mission. Originally introduced as a downloadable pack called Hurricane Pack 2 for the original Xbox Ninja Gaiden during Round 3 of the Master Ninja Tournament in August 2004, it introduced enemies like Knightmares, Nicchae, and Ishtaros. This pack was later repackaged in Ninja Gaiden BLACK as the final set of missions in Mission Mode, titled "Eternal Legend".
First Floor: Time Limit: 40 seconds. Enemies: 8 White Ninjas.
Second Floor: Time Limit: 35 seconds. Enemies: 3 Purple Ninjas. Prize: Windmill Shuriken.
Third Floor: Time Limit: None. Enemies: 10 Bats.
Fourth Floor: Time Limit: 40 seconds. Enemies: 3 Purple WS Ninjas, 2 Black Spider Ninjas, 2 Warlocks. Remember to use the Strongbow, obtained from the chest before entering the Hurricane Realm.
HP2 Realm: Time Limit: 60 seconds. Enemies: Spearman, Masakado. Prize: Lives of the Thousand Gods. Remember to use the Warhammer.
Part 1: Time Limit: 45 seconds. Enemies: 4 MSAT Soldiers, 4 MSAT Commanders.
Part 2: Time Limit: 35 seconds. Enemies: 2 Armored Gunner Soldiers, 4 Armored RPG Soldiers.
Part 3: Time Limit: 15 seconds. Enemies: 4 Armored RPG Soldiers.
Part 4: Time Limit: 40 seconds. Enemies: 2 Mecha MSAT Soldiers, 4 Mecha RPG Soldiers, 4 Mecha Gunner Soldiers.
Part 5: Time Limit: 20 seconds. Enemies: 4 Mecha RPG Soldiers.
Boss Battle: Dynamo. Lackeys: 8 MSAT Soldiers. Time Limit: 60 seconds.
Part 1: Time Limit: 50 seconds. Enemies: 3 Red Dinos.
Part 2: Time Limit: 70 seconds. Enemies: 1 Red Dino, 2 Monk Fiends, 10 Brown Fiends.
Part 3: Time Limit: 40 seconds. Enemies: 30 Large Dung Beetles.
Boss Battle #1: Hydracubus. Lackeys: 10 Brown Fiends. Time Limit: 75 seconds. Prize #1: Lives of the Thousand Gods. Prize #2: Kitesu.
Part 4: Time Limit: 45 seconds. Enemies: 2 Zombie Archers, 4 Zombies.
Part 5: Time Limit: 50 seconds. Enemies: 2 Zombies, 14 Wasp Fiends, 4 Pink Fiends.
Boss Battle #2: Yotunfrau. Lackeys: 10 Pink Fiends. Time Limit: 90 seconds. Prize: True Dragon Sword.
Part 1: Time Limit: 65 seconds. Enemies: 9 Zombie Soldiers, 1 Purple Zombie.
Part 2: Time Limit: 60 seconds. Enemies: 6 Catwomen, 6 Pincer Fiends.
Part 3: Time Limit: 60 seconds. Enemies: 2 Crab Fiends, 6 Pincer Fiends.
Part 4: Time Limit: 90 seconds. Enemies: 4 Ogres, 12 Large Dung Beetles.
Boss Battle #1: Doku. Lackeys: 8 Purple Ninjas. Time Limit: 100 seconds. Prize: Dark Dragon Blade.
Boss Battle #2: Marbus. Lackeys: 11 Catwomen. Time Limit: 180 seconds. Prize: Lives of the Thousand Gods.
Sub-Bosses: 4 Knightmares. Time Limit: 110 seconds.
Boss Battle: Nicchae. Lackeys: 8 Pincer Fiends. Time Limit: 120 seconds.
Part 1: Enemies: 15 Bats. Time Limit: None.
Final Battle: Ishtaros. Lackeys: None. Time Limit: 90 seconds.