Gusto is a Mouse in Ghost of a Tale. He is a prisoner in the courtyard of Dwindling Heights Keep, along with his sister Fatale. He is a thief, and can teach Tilo how to pick locks, and increase his tenacity and awareness. He looks up to Tulong, the legendary thief, and wants to meet him one day. If Tilo talks to him when he is wearing the Thief costume, Gusto will be awestruck and tell Tulong about various instances when he and Fatale stole from other animals.