Monster Rancher 4
This is the best Monster Rancher game I've ever played. you can create multiple monsters to train instead of just one like the previous games.
Monster rancher 4 review
A great game with unending replay value, recommended to not read any guide on your first play through, just go between adventuring and fighting in tourneys and have a blast traning your monsters to plow through your enemies. A great casual game, not one you can beat in 24 hours nor would you really want to, even after you beat the game there is still plenty to do, just a great game overall.