Street Fighter X Tekken is the first crossover fighting game that features characters from Street Fighter and Tekken franchises in one arena! It was developed by Capcom, and thus is based on 2D gameplay/graphics with projectiles and super combo moves of Street Fighter. However, characters from Tekken universe will have similar controls and familiar moves as in their own game. The battles are focused on 2v2 tag match-ups, where players must choose two characters from either universe and brawl until the first health gauge of any character drops to zero. Characters can be switched out normally, or during certain combos. Street Fighter X Tekken story revolves around an unknown cubical in Antarctica. The object is called Pandora as it gives additional powers to close by beings in conflict. There’s a whole story to it and some specific team set-ups have their unique story elements added.

Street Fighter X Tekken (ストリートファイター Ｘ 鉄拳, Sutorīto Faitā Kurosu Tekken?) is a crossover fighting game developed by Capcom and released in March 2012 for the PlayStation 3 and Xbox ...   more on Wikipedia

Naruto Shippuden: Ultimate Ninja Storm Revolution is a fighting action-adventure game developed by Cyberconnect 2. Experience vast and rich territories of the ninja world, where one can become a master in ninjutsu, taijutsu, and genjutsu abilities! Prepare to learn some new techniques and play with over 100 unique characters! Enjoy the amazing ninja battles initiating super combos, ultimate jutsu abilities and more! Find out the origin of the Akatsuki organization through animated scenes incorporated into your gameplay and last but not least, try out new character — Mecha-Naruto!

Naruto Shippuden: Ultimate Ninja Storm Revolution, known in Japan as Naruto Shippūden: Narutimate Storm Revolution (ＮＡＲＵＴＯ－ナルト－ 疾風伝 ナルティメット   more on Wikipedia