installers from unknown sites, as they often contain malware or outdated, unstable versions of emulators. or a list of the exclusive characters available in the PS2 version?

The PlayStation 2 version is considered the definitive edition by many players because it includes content missing from the original arcade release:

: Features Quick Shift (costing 1 skill bar) to tag in teammates during a combo, and Saving Shift (costing 2 skill bars) to escape being hit.