Adopt me!
No other pet is as graceful as I am; unicorns dance as they sing! We are known for our remarkable voices and singing talent. We travel far and wide to share our songs, even to the rainbow's end. Gallop along with me across the land, discovering new vistas far and near. Let the beating of my hooves match the beating of your heart! If you have a song in your heart, you have the Unicorn to thank.

Blue unicorns are much prettier than green unicorns. Lots, really.

Land travel
Wherever your pet goes, they will bring back their memories. Then they can appear in them as they win scenes through their exploits! (You can use this skill on your own or with others.)

Singing
Your pet will be filled with joyful music in its heart, enabling it to sing forth visible notes, clefs and staves which will appear to other pets in the moment of singing! (You can use this skill on your own or with others.)