Time for some tips
Rotondo:
-Go towards your victims, but be cautious when there's infiltrators
-Unlike the other bosses, have a knock-back resistance which means you cannot fly across the map
-Ground pound your victim(s) if he's too far for your clicking attack, but close enough to deal damage
-You can still steer your mouse when ground pounding, use it as an advantage from infiltrators attempting to backstab you
-You cannot use your click attack or move while ground pounding, avoid using the ground pound often, which makes you an easy target for Riflemen
William:
-Use the XANA Smoke to stop fast players from running away
-You can still jump when you're charging the super jump
-Right clicking and jumping at the same time helps you move faster
-Minibosses can survive a hit from you, attack them multiple times to prevent trouble
-Like every slow boss, you're an easy target for infiltrators, it's best to take them down first
-Charge up and use your jump when you're falling to cushion yourself from taking fall damage
Mocheeze:
-Hold shift to speed up, this prevents you from being an easy target
-Fly from one location to another, this prevents Riflemen from sniping you
-Take down healers first, they can be a real pain if they form a chain
-Right clicking makes you invisible for several seconds, use it to confuse your enemies
-Using the invisibility doesn't make you completely invisible since you have particles, don't stay still when using the invisibility if survival is top priority
Dark Samus:
Spyro:
I will type the rest soon