In Naruto Shippuden: Ultimate Ninja Storm 2 for the PS3 and Xbox 360, you can unlock a lot of different things by simply gaining SP during your battles including characters, support characters, plus titles and pictures for your Ninja Info Card.
For clarification, the support characters are free to choose between Attack, Defense, or Balanced support options.
Here is a list of all of the SP unlockables:
Chiyo – 140,000 SP
Deidara – 100,000 SP
Hidan – 260,000 SP
Itachi – 400,000 SP
Jiraiya – 440,000 SP
Jugo – 360,000 SP
Kabuto – 220,000 SP
Kakuzu – 280,000 SP
Karin – 340,000 SP
Killer Bee – 540,000 SP
Kisame – 120,000 SP
Konan – 480,000 SP
Lars – 600,000 SP
Minato (Fourth Hokage) – 580,000 SP
Naruto (Rasen Shuriken) – 300,000 SP
Naruto (Sage Mode) – 520,000 SP
Orochimaru – 240,000 SP
Pain – 500,000 SP
Sai – 200,000 SP
Sasori – 160,000 SP
Sasuke (Taka) – 560,000 SP
Sasuke (Kirin) – 380,000 SP
Suigetsu – 320,000 SP
Tobi – 420,000 SP
Tsunade – 460,000 SP
Yamato – 180,000 SP
Asuma – 660,000 SP
Chiyo – 680,000 SP
Deidara – 810,000 SP
Hidan – 840,000 SP
Itachi – 780,000 SP
Jiraiya – 690,000 SP
Jugo – 770,000 SP
Kabuto – 720,000 SP
Kakuzu – 860,000 SP
Karin – 750,000 SP
Killer Bee – 950,000 SP
Kisame – 800,000 SP
Konan – 890,000 SP
Lars – 990,000 SP
Minato – 970,000 SP
Naruto (Rasengan, Rasen Shuriken) – 620,000 SP
Naruto (Sage Mode) – 920,000 SP
Orochimaru – 710,000 SP
Pain – 900,000 SP
Sasori – 830,000 SP
Sasuke (Taka) – 930,000 SP
Sasuke (Kirin, Chidori) – 640,000 SP
Suigetsu – 740,000 SP
Tobi – 870,000 SP
#003 – 610,000 SP
#026 – 30,000 SP
#028 – 650,000 SP
#056 – 670,000 SP
#057 – 700,000 SP
#073 – 730,000 SP
#077 – 760,000 SP
#098 – 790,000 SP
#105 – 820,000 SP
#107 – 850,000 SP
#124 – 880,000 SP
#135 – 910,000 SP
#159 – 940,000 SP
#177 – 960,000 SP
#178 – 980,000 SP
#199 – 999,999 SP
Adolescent – 675,000 SP
Akatsuki – 855,000 SP
Apprentice – 230,000 SP
Artistic – 765,000 SP
Bargaining – 130,000 SP
Bipolar – 725,000 SP
Bonds – 310,000 SP
Bounty – 350,000 SP
Bounty Hunter – 330,000 SP
Buddy – 190,000 SP
Bushy Brows – 510,000 SP
Crying – 90,000 SP
Desert – 625,000 SP
Friend – 290,000 SP
Frog – 695,000 SP
Glasses-Wearing – 705,000 SP
Gutsy – 470,000 SP
Hebi – 865,000 SP
Immortal – 785,000 SP
Joyful – 60,000 SP
Large Bounty – 370,000 SP
Mangekyo Sharingan – 745,000 SP
Master – 270,000 SP
Modeler – 775,000 SP
Ninja – 10,000 SP
No. 1 Knucklehead – 390,000 SP
Odd Beast – 755,000 SP
Outrageous – 70,000 SP
Passive – 170,000 SP
Popular – 210,000 SP
Prodigy – 715,000 SP
Pupil – 250,000 SP
Rinnegan – 825,000 SP
Rouge Ninja – 50,000 SP
Sad – 80,000 SP
Scared – 665,000 SP
Sharingan – 655,000 SP
Smiling – 110,000 SP
Space Cadet – 685,000 SP
Supporter – 150,000 SP
The Angel – 815,000 SP
The Chubby – 570,000 SP
The Cloud Village – 965,000 SP
The Flower Shop – 590,000 SP
The Genius – 550,000 SP
The Good Kid – 805,000 SP
The Hot Water Village – 995,000 SP
The Idiot – 410,000 SP
The Land of Earth – 895,000 SP
The Land of Fire – 875 000 SP
The Land of Lightning – 905,000 SP
The Land of Water – 915,000 SP
The Land of Wind – 885,000 SP
The Leaf Village – 925,000 SP
The Main Branch – 615,000 SP
The Masked – 795,000 SP
The Mist Village – 945,000 SP
The Monster-Strong – 430,000 SP
The Puppet Master – 635,000 SP
The Rapper – 835,000 SP
The Rock Village – 955,000 SP
The Sand Village – 935,000 SP
The Savage Beast – 450,000 SP
The Side Branch – 605,000 SP
The Sound Village – 975,000 SP
The Waterfall Village – 985,000 SP
The Yellow Flash – 845,000 SP
Uber Brows – 530,000 SP
Uneasy – 645,000 SP
Unscathed – 735,000 SP
Utterly Gutsy – 490,000 SP