So, if we found out that Bright Man's Freeze attack is based on his health, then maybe we can figure out the patterns/ reactions of other bosses to have an easier time.
SHADOW: My money is on reaction based. Either that or there is supposed to be some other method of fighting him buster only, because waiting to react only works if he does blades. Even at a far distance if he slides and you haven't committed to a jump as soon as his animation changes, then you will be hit as you rise. Ouch.
QUICK: Gotta be some pattern to when he throws the rangs. other than that I can see his jumps being random. Also thinking that it's reaction based.
PHAROAH: He seems to be lockable into a pattern, considering how many videos I've seen of people trading charge shots with him for the WHOLE battle.