Battle Arena Toshinden 2 is the first sequel to Battle Arena Toshinden. It adds three new starting fighters; Tracy and Chaos with the original game's final boss, Gaia returning un-armored and with a completely new move set. There are also three new bosses and hidden characters raising the total number of fighters to 15 (up from 10). While the core gameplay is similar, this sequel is more tactical than the original game. (mobygames.com)