This slime is an upcoming slime featured in the Slime Rancher 2 trailer and is one of the 5 new slimes featured in it. The slime itself is an off-white bunny slime with whiskers, floppy ears, and a tabby slime-like mouth shape. The name may change. In the trailer, we can see a Flutter-Cotton largo eat a purple cabbage without a heart coming out, wich likely confirms that it's not it's favourite food, unless they changed the favourite food system.