For taming- walk up to him with a light pet with no aggressive creatures around & wait. After a few seconds he'll do a little dance & you can feed him.

At thd moment, Plant Species Z seeds are the best, but he will eat chitin in a pinch. Once he eats, he'll run off & use his glowing body to play a literal game of "Red light, Green light".

Stay still on red, run to him on green- be prepared to put your brakes on though- If you continue to move on red, it will reduce the tame effectiveness & he'll also attack you/any dino in his radius, including wild ones, so be careful, because those dino WILL attack your potential tame as a result.

Once you get up to him, feed him & he'll run & you play the game again. Rinse repeat til tamed! GL everyone πŸ˜„

More Cosmo Taming & KO Tips