The game is a 3D fighting experience (often described as 2.5D) featuring a diverse roster of 20 to over 408 audio-inclusive characters
While an official English ISO does not exist, players typically navigate the game using fan-made translation guides or unofficial patches. Game Overview
While intended for play on a PS2, good emulation support for playing on a PC (via software like PCSX2) would be beneficial for those without a PS2.
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Until then, keep fighting, spirit detective.