2:40 If my memory is right, you can also start pressing Red Queen's acceleration button or attack button and Nero will slightly change animation and cause bigger damage
I know my comment is very late, but to anyone actually reading this, I think I found a buster grab attack that nobody knows, it's against those gaint red bats, when they about to explode at low health, buster them and nero will pick it up and do a stylish as hell throw, that people need to see I found it while trying the bloody palace
fun thing for fighting Artemis with Nero: during the buster animation, you can use exceed during the animation and rev the sword for even more damage and a longer animation