Master mode
Successfully complete Musou mode on the Easy or Normal difficulty to unlock the Master difficulty for Musou mode and Free mode.
Chaos mode
Successfully complete Musou mode with a character from the Wu, Shu, Wei, and Other factions to unlock the Chaos difficulty.
Alternate costume
Reach level 25 with a character in any mode to unlock his or her second costume.
Voice Gallery
Reach level 50 with a character in any mode to unlock his or her Voice Gallery.
Movie Player
Successfully complete Musou mode to unlock the Movie Player.
Bonus characters
Successfully complete the indicated task to unlock the corresponding character:
Cao Cao: Successfully complete Musou mode with three Wei characters.
Cao Pi: Defeat Cao Pi in less than five minutes on the Sun Jian side of He Fei.
Cao Ren: Successfully complete Battle Objective 2 on the Lu Bu side of Fan Castle.
Diao Chan: Successfully complete Musou mode with one character from each kingdom.
Dong Zhuo: Successfully complete Battle Objective 1 on the Lu Bu side of The Battle Of Hu Lao Gate.
Gan Ning: Successfully complete Musou mode with a Wu character.
Guan Ping: Successfully complete Battle Objective 2 on the Shu side of Fan Castle, and finish the battle with Guan Ping surviving.
Huang Gai: Successfully complete Battle Objective 3 on the Wu side of The Battle of Chi Bi.
Huang Zhong: Successfully complete Battle Objective 1 on the Wei side of Ding Jun Mountain.
Ling Tong: Successfully complete Battle Objective 1 on the Wei side of the Battle of Shi Ting.
Liu Bei: Successfully complete Musou mode with three Shu characters.
Lu Bu: Successfully complete Musou mode with Liu Bei, Cao Cao, Diao Chan, and Sun Jian.
Lu Meng: Successfully complete Battle Objective 2 on the Wei side of He Fei.
Ma Chao: Successfully complete Battle Objective 2 on the Wei side of Han Zhong Attack Defense Battle.
Pang Tong: Successfully complete Battle Objective 3 at the Cheng Du battle, and finish the battle with Pang Tong surviving.
Sun Ce: Successfully complete Battle Objective 1 on the Sun Jian side of the Battle of Xia Pi.
Sun Jian: Successfully complete Musou mode with three Wu characters.
Sun Quan: Successfully complete Battle Objective 1 on the Lu Bu side of The Battle of Chi Bi.
Taishi Ci: Defeat Taishi Ci in the Battle For Wu Territory.
Wei Yan: Successfully complete Battle Objective 2 on the Shu side of Wu Zhang Plains, and finish the battle with Wei Yan surviving.
Xiahou Yuan: Successfully complete Battle Objective 1 on the Shu side of Ding Jun Mountain.
Xiao Quio: Successfully complete Battle Objective 3 on the Wu side of the Battle of Shi Ting.
Xu Huang: Successfully compelte Battle Objective 2 on the Wei or Wu side of Fan Castle.
Xu Zhu: Personally kill Cao Ren and Xu Chu on the Wu side of He Fei.
Yuan Shao: Successfully complete the Battle Of Guan Du scenario with the Cao Cao force, and Yan Jin and Bai Ma surviving. You will need a strong character that can defeat enemies quickly. Make sure to have Renbu Bag, a long Musou gauge, and a fast warhorse. The enemy officers will try to siege Bai Ma and Yan Jin at the same time. Move between them as fast as possible to aid the guards. If either falls at any time during the battle, the target is a failure. Keep the enemy back and defeat Yuan Shao as quickly as possible.
Yue Ying: Successfully complete Battle Objective 1 on the Wei side of the Battle of Wu Zhang Plains.
Zhang Jiao: Defeat Zhang Jiao in the Yellow Turban Rebellion.
Zhang Liao: Successfully complete Musou mode with a Wei character.
Zhen Ji: Successfully complete Battle Obective 1 on the Lu Bu side of Xu Du Invasion Battle.
Zheng He: Successfully complete Battle Objective 2 on the Shu side of Han Zhong Attack Defense Battle.
Zhou Tai: Successfully complete Battle Objective 3 on the Shu side of Yi Ling.
Zhuge Liang: Successfully complete Musou mode with a Shu character.
Easy experience
Select Free mode, and choose the Battle Of He Fei Castle scenario on the Chaos difficulty. Have player one choose a maxed Zhuge Liang. Have player two choose whoever they want to acquire weapons or level up. Have both players choose a fast horse with "Acquire Weapon" skill (for example, Auburn King for his "Steel Hoof" skill for charging into crowds). Zhuge Liang must be equipped with a 90+ weapon that has Ice element, Flash, True Musou, Air Wave, and Mystic Seal. Having the Flash property is the most important as it will quickly cut down enemies. When the scenario begins, have player two ride and jump into the pool of water below the belt trap where you cannot be harmed. Have player one charge towards Sun Quan's boats and ride onto the middle one (the boat just east of Sun Quan's). There is a Hua Tuo's Balm located in an urn at the southeast corner of the boat which will fill your Renbu and Musou gauges. Ride as close as you can to Sun Quan without getting knocked off your horse. Because you are using a maxed Zhuge Liang, make use of the special start tome to soften him up. As your fire special attack is going off, pad your damage using your power attack, which will also clear out enemy officers giving you more opportunity to open up on Sun Quan. Just as your special ends and Sun Quan is getting back on his feet, dismount and use your Musou attack on him. At this point, he should be close to half or less HP, and finishing him off is easy. If he jumps or dodges and is still standing after your Musou finishes, either hit him with your normal or power attacks or refill by attacking the crowd, which should be nearly dead because of your fire special. All of this requires approximately one minute. All three objectives will be completed and you will get four weapons for each character, plus gain some levels for the one who is not at the maximum. It is possible to do this with Zhuge Liang at lower levels, but it is important that if you do attempt it that you have the 90+ weapon mentioned as well as the following skills: Infinite Renbu, Flame, Hellfire, Stamina, and Special Start.