Samurai Warriors: Xtreme Legends Secrets and Unlockables (PS2)

Samurai Warriors: Xtreme Legends is a PS2 expansion disc for Samurai Warriors . Once this game is loaded, you are prompted to insert the original SW disc in to load that data, and to combine both games for the best experience. While Xtreme Legends can be played alone, you can't utilize any of the features of the original.

Unlike the Dynasty Warriors Xtreme Legends games, this offers four new characters and a brand new mission and map. This also offers new weapons for everyone, a new survival mode, and fixes a few things that greatly annoyed players. Even after they had reached rank 20 characters could still gain skill points and increase their attributes without having to the reset the character to default. Your character can also reach stat levels higher than normal given you spend the bonus points on it. (Wikipedia)

Unlockables

Alternate Costumes
Alternate Costumes - Beat the game with each character to unlock their alternate costumes.

The New Items
Here's how to unlock the new items

Book of Healing - In Inahime's Osaka Summer Campaign, begin the map by defeating Takigawa Kazumasu, then defeat Kunoichi before she heads in the ninja path.

Golden Rune - Gather 50,000 Gold Units in Gold Rush mode and buy the item.

Ninja Suit - In Hashiba Hideyoshi's Siege at Azuchi Castle, during the third floor of the castle part, defeat the 5 'wrong general' before defeating the real one.

Shield Wall - In Honda Tadakatsu's Battle of Komaki-Nagakute, succeed every mission you are given and then defeat the supply team.

The Kage Scroll - In Imagawa Yoshimoto's Challenge at Honnouji (Lower path), defeat every Uesugi officers, then Nobunaga, then win a deadlock against Uesugi Kenshin.

War Baton - Play any Versus mode 35 times

Easter Eggs

Fight Lu Bu
In the survival Gold Rush mode, if you get a huge amount of gold, Lu Bu will challenge you when you try to leave the training hall.

Secrets

Lucky Characters
If, or when, a character that you control is highlighted with a GREEN cursor, they are considered "lucky". In other words, they will be able to use their Fourth- or Fifth-Level special attacks at one level before they'd usually do so. When the PS2 is reseted, so will the cursor.

A beautiful and original trailer of the game: