Scattershot

• It will attack you with heat seeking missiles so keep moving to keep your distance and shoot them.
• Taking out the arm weak spots will prevent Scattershot from firing missiles at you or shoot the shoulder weak spots to stop traps being placed around the arena preventing you from swinging freely.

https://gfycat.com/yawningrectangularamurratsnake

Basilisk

• Aim for the weak spots on it's back, taking one out will spawn enemies so kill them fast allowing you to concentrate on the Basilisk.
• Once weakened it will try to ram you this causes large amounts of damage so you use your zip to move out the way fast.
• Grappling high into the sky and using slow motion is effective to expose the weak points and take them out in no time at all.

https://gfycat.com/spotlesslastgrub

Scorcher King

• The large array of lasers can be destroyed easily so focus on shooting them accurately and fast allowing you to swing around freely to avoid enemy fire.
• Focus on lateral movements grappling fast and with speed or using your zip to move out of the way of its main eye cannon.

https://gfycat.com/pastelimperfectequestrian

Live Wire

• Try to take out as many of the electrical nodes as fast as possible this will increase your chances of being able to avoid the defensive attacks while the shield is active.
• Once weak and the boss is using its disc attack, grappling speed is important keep moving fast and avoid the disc.
• The boss can be taken out fairly quickly if you focus on the boss and not the enemies that spawn in if you are able to swing fast and keep up momentum.

https://gfycat.com/uniformfinishedanhinga

Hive Mind

• Speed and swing control is important to avoid the large obstacles in the map, try not to have large grapple length for smaller concise movements, Slow-mo and Zip are your friends.