Vaas Montenegro is a fictional character and the primary antagonist in the video game Far Cry 3. He is known for his unpredictable and violent behavior, which makes him a memorable villain in the gaming world. Vaas is portrayed as a pirate leader on the Rook Islands, where he captures the game's protagonist, Jason Brody, and subjects him to psychological torment. Vaas is characterized by his distinctive appearance, including his tattoos and wild hairstyle. His infamous quote, "Did I ever tell you what the definition of insanity is?" has become iconic among gamers. The character's complexity and depth have contributed to his popularity, making him a standout figure in the Far Cry series.