Bosses are unique and massive enemies with robust health, and massive firepower. All bosses have one or more parts that can be destroyed separately from the rest. Some bosses require you to destroy all of their parts to kill it, others do not. When a boss spawns you will be notified by a system wide announcement and will be marked on the map with a red skull and crossbones. Bosses drop data chips, multiple artifacts and some can drop a weapon.