I did a search on this site for any info on this and no hits popped up so I thought I would post
This comes from Dreamcast Junkyard in 2018
Stampede the sheep herding game
Apparently the game was found in playable state and secured by bitmap bureau. The developer behind Xeno Crisis. They have pictures and interview with bitmap bureau. They said when done with Xeno Crisis they would definitely look at this. Now that Xeno Crisis is done we might get a release of this.