Monster Rancher 3 is the third game in Tecmo's Monster Rancher series. It is the first game in the Monster Rancher series for the PlayStation 2.
This game uses cel-shaded graphics to give the game a more cartoon-like feel. However, the player may still generate monsters by inserting a disc into the PS2. Furthermore, Monster Rancher 3 is the first series in the game to allow players the ability to generate monsters based on past discs, as well as monsters already bred. As an example, once a monster has been bred, from that point on one can simply generate them from their Monster Encyclopedia, saving the gamer unnecessary time and trouble having to remember and find discs that generated various monsters.
Making up for the loss of the combination system is the ability of monsters to adapt to their surroundings. Though only one is available at the start of the game, the five different homes that you can raise your monster in represent five climates, each with its own training regimes, features, and food.
Source: Wikipedia, "Monster Rancher 3", available under the CC-BY-SA License.