As an AI language model, I don't have the capability to watch videos or movies so I can't provide you with a specific highlight of Freedom Planet 2 featuring Milla, Neera, and Kakashi. However, I can give a brief description of each character. Milla Basset is one of the main playable characters in Freedom Planet, a 2D platformer game reminiscent of classic Sonic the Hedgehog titles. She is a anthropomorphic dog with psychic powers and a love for adventure. Neera Li is also a playable character in the game, a half-avian, half-snake creature with powerful wind abilities. Kakashi Hatake, on the other hand, is a character in the Naruto anime and manga series. He is a highly skilled ninja from the Hidden Leaf Village, known for his unique Sharingan eye and his training of the main character, Naruto. It's unclear how the crossover between Freedom Planet and Naruto happened or what the highlights of their collaboration would be.