Final Fantasy 7 for sure.

Erghiez is fun too.

Ape Escape! Monkeys are even more fun if you can bop em on the head with a lightsaber of monkey doom!

Metal Gear Solid. Plastique is fun.

Resident Evil anything- i locved em all.

Silent Hill- Wasnt really scary but the endings were pretty good.

Xenogears. If you havent played it and you like RPGs you need to.