EchoedSelves is a mixed reality free-dance experience where your movements generate an alien echo: a shifting, geometric entity that you can move with. It invites users to rediscover their bodies through play, motion, and reflection, while opening a shared space to explore otherness and connection. Created by Z Burcu Kaya, Edda Mia Löhr and Stefano Max during a hackathon, the demo was exhibited at Denizen Art Space (Berlin), Kunst im Tunnel (Düsseldorf), Gamesground XR Dungeon (Berlin) and CULTERIM Space Berlin Alex.