Buggy Fight is an achievement earned by defeating the encounter in the Emerald Nightmare instance after squishing at least 15 Glow Bugs, on Normal difficulty or higher.
During Nythendra's Heart of the Swarm phase, the Glow Bugs will begin spawning on the floor around the room (they glow orange); clicking on them will squish them. There are five separate Heart of the Swarm phases throughout the fight for the 15 Glow Bugs to be squished in. Once 15 have been squished, defeat Nythendra and the achievement is awarded.
- Patch 7.0.3 (2016-07-19): Added.