Dr Zomboss, full name Dr Edgar George Zomboss, is the main antagonist of Plants vs. Zombies, the tower defense game released by PopCap in 2009. He attacks in a giant robotic Zombot and serves as the final boss players must beat to protect their house. Clips of his defeat have circulated in gameplay videos, edits, and soundboards because the moment marks the end of a long campaign fight. The going down sound keeps being reused as a shorthand for any powerful enemy finally falling.