I hope I'm posting this in the right place.
So..
There was this game I use to watch my brother play when I was younger. I think it was for Sega Dreamcast, but I'm not 100% sure. It was a game with different monsters and creatures, I think you could create them. The only monster that sticks out is one that was all yellow, it had a giant head, kinda like Chomp Chomp, but it was just teeth, no eyes, and a small "Tyrannosaurus like" body. I think you were on a farm type place. there were other monsters too.

It was a cartoony game, not a shooter, or action game.


I think the monsters could fight tho.


I've searched everywhere to see if I could figure out what this game was, but no luck.  I tried Yahoo Answers, and nothing turned out there, I figure someone here might know what I'm talking about. 
Does anyone know what game I'm talking about?

I don't remember it's name, but I remember the game.

No I don't remember the game at all I don't know much of Sega Dreamcasts's games only the Sonic Adventure series.

I think they game you're thinking of is called Monster Rancher. It's for the Playstation, and not the Dreamcast.

http://en.wikipedia.org/wiki/Monster_Rancher_(video_game)

I don't remember that game at all, haven't played the Dreamcast before in my life.

Someone70 : YES!!!! THAT'S IT!!!  OMG THANK YOU!!!!

I see, I'm glad I could answer your question. Thus, I'll close the thread now. ;3

Contact me if you have any other questions.