New NPCs

New NPCs detected in January 21, 2020.

Heckbug
events/hellbug/hellbug_gold

Heckbug
events/hellbug/hellbug_blue

Heckbug
events/hellbug/hellbug_shadow

Heckbug
events/hellbug/hellbug_red

Summon/holiday Hellbug
summon/holiday_hellbug