Shounen Magazine vs. Shounen Sunday fighting game for PSP made by Konami.
It's to celebrate the 50 years of the two magazines.
Negi Springfield and Asuna Kagurazaka of Negima!
Natsu Dragonil of Fairy Tail
Shinichi Mechazawa of Cromartie High School
Inu Yasha of Inu Yasha
Kenichi Shirahama of History's Strongest Disciple Kenichi
Ippo Makunouchi of Hajime no Ippo
Ikki Minami of Air Gear
Yoshimori Sumimura of Kekkaishi
Kaoru Akashi, Aoi Nogami, and Shiho Sannomiya of Zettai Karen Children
Hayate Ayasaki of Hayate the Combat Butler.