9. Tatsunoko Vs. Capcom: Ultimate All-Stars
Including Tatsunoko Vs. Capcom: Ultimate All-Stars might be considered cheating for some, as the "Ultimate All-Stars" edition of the game that released in January 2010 is technically just a re-release of Tatsunoko Vs. Capcom: Generation of Heroes - but we're gonna count it. Anime games as good as this are hard to come by after all.
Tatsunoko Vs. Capcom: Ultimate All-Stars features the kind of anime characters that have very little appeal outside of Japan. If any of you have even heard of shows like Gyakuten! Ippatsuman, Neo-Human Casshern, or Science Ninja Squad Gatchaman, then congratulations, you are officially a top tier anime nerd.
Regardless, Ultimate All-Stars is considered one of the best of the best for a reason. This two vs two fighting game was sought after by Western fans not because of its roster or its marketability, but because of how much fun the game is to play.
It will be no surprise to fans of the game that this is easily one of the best-reviewed games on this list, netting itself several 9/10 review scores, an 85 on Metacritic and even winning the prestigious "Best Fighting Game" award at the 2009 E3 conference.