Monster Rancher 4 by Tecmo
This example of virtual life lets you raise virtual pet monsters.
Product Description From the Manufacturer Mocchi, Suezo, and Golem are back in Monster Rancher 4. The latest entry in the Monster Rancher series comprises a mass of new features, including a multi-breeding and training program where you can breed and train multiple monsters simultaneously and a brand new interactive action/adventure element, creating a game that goes years beyond its predecessors.
Fully customize your training facilities with a variety of equipment. The more efficiently you plan your training facilities, the better you'll be able to train your new monsters. The CD/DVD swapping feature in Monster Rancher 4 comes with a whole new variety of monsters to unlock simply by popping in your favorite CDs and DVDs. Try using some of your favorites to see what they unlock.