Persona is also a series of games by
Atlus, part of the
Shin Megami Tensei series, they are complex and interesting
console RPGs.
There are 2 Persona games in the US for Playstation, plus some for Gameboy Color. In Japan, there are 3 Persona games for Playstation: Persona, Persona 2: Innocent Sin, and Persona 2: Eternal Punishment. Persona 2: Innocent Sin has not yet come to the US, and Atlus USA isn't being clear on whether or not it is likely to (11/2001)
The two Persona 2 games form a single continuous plot (although each has its own resolution), both have nearly identical gameplay, although there are some changes. Unfortunately for US gamers, Innocent Sin is the first of the two games, so if it ever comes out here, large portions of the plot will have been spoiled for anyone who has played Eternal Punishment first.