Naruto: Ultimate Ninja unlockables

From Naruto - Wiki on Neoseeker

Capsule Machines

Capsule Machine for Collectors: Obtain Chunnin Rank
Capsule Machine for Maniacs: Obtain Anbu Rank

Character Outfits

To change the color of an outfit for any character press and hold L2 and R1, then press X. This will only work in Mission and Free Battle Mode.

Characters

Curse Seal Sasuke: Get Chunnin Rank
Kyuubi Naruto: Complete all B Rank Missions
Neji Hyuuga: Finish story mode with any character
Hinata Hyuuga: Finish Neji’s story mode
Haku: Finish Hinata’s story mode
Zabuza Momochi: Finish Haku’s story mode
Gaara: Finish Zabuza’s story mode
Orochimaru: Finish Gaara’s story mode
Note: Unlockable characters can only be used in other modes than story mode once their story mode is finished

Extra Missions

In the game there are two extra missions. These missions can be unlocked after finishing certain missions.
Mission # 11 Finish Icha Icha Paradise (99 times each pair): Complete S Rank Mission # 2 Icha Icha Paridise
Mission # 12 Collect 9,999,999 worth money: Finish all non-S rank missions (Hokage Rank)

Hidden Scrolls

These are the locations of The Hidden Scrolls for the S rank missions. The Hidden Scrolls can be obtained in any mode. This means you can use practice mode (suggested mode to use) to obtain the scrolls. In each level there is a background and a foreground so make sure your in the right one.
Ramen Shop (foreground): Hit the lanterns so each one glows red
Hokage’s Statue Stage (foreground): Jump repeatedly on the tree to the left
Zabuza’s Home (background): Wait 3 seconds on the game clock while standing on the balcony
Bridge (background): Wait 3 seconds on the game clock while standing on the boat
Yagura map with Giant Frog & Snake (background): Jump from the top of the frog to the snake and then jump back to the frog
Chunnin Testing Stage (foreground): Run through the tunnel from the left entrance and exit the right. Repeat this three times
Hero’s Gravestone (any): Attack your opponent’s support character five times
Survival Stage (background): Destroy the doll on the right 10 – 15 times
Wind Clan (foreground): Keep attacking the vending machine until the scroll shows up
Tornado Sand Map (background): Destroy 8 of the objects flying inside of the tornado
Nightly Rooftop Map (background): Stand on the tail of the right fish statue until the scroll shows up
44 Forest of Death (foreground): Attack the fish on the left 3 times

Stages

Two Villiage of Sand Stages: Finish Gaara’s story mode
Great Naruto Bridge: Complete Haku’s story mode
Zabuza’s Hideout: Complete Haku’s story mode
Kazekage’s Mansion: Complete Gaara’s story mode
Sumanigo Estate and Buddha Statue: Complete Gaara’s story mode