Mimi-Sentry is a fan-created character that reimagines the Team Fortress 2 Level 1 Sentry Gun as a sentient, humanoid robotic girl. Created by the artist Mochi (also known as Moist_S_C) in early 2023, the character quickly went viral within the TF2 community, inspiring a wave of animations, GMod renders, and digital art. The meme typically plays on the contrast between her cute anime-style appearance and the deadly, high-precision firepower of the in-game sentry gun she represents. Users often utilize the Mimi-Sentry template to express the frustration of playing against 'turtling' Engineers or to celebrate the creative, often chaotic nature of the TF2 fan community.