Great game spanning soon to be all 4 of Sony's PlayStation consoles. Although initially it would appear none of the American versions had online, you could tunnel into Master of Arena and Nexus to get online. In my opinion the best game series for the Playstation line of consoles.
It had several infamous villans, including (but not limited to) Nineball, Stinger, and Leos Klein.
If you can find it, get it. It's hard at first, but the more you play, the more fun it gets.
"What the... i'm losing!? impossible! I'm burning! Phantasma. I'm dieing!" -Stinger
"We all make mistakes, don't you think, Raven? We humans need strict supervison; we cannot live on our own. A state devoted solely to ravens... I'm a realist, not some fool! All that I've wanted to do was to revive the ways of old... Die rebel!" -Leos Klein