Mixed Reality experiences such as HoloLens operate by blending virtual objects with real world. It requires a new way of thinking about how developers and designers should create graphical, audio and typographic assets, develop interactive scenarios and gameplay, provide action feedback and generate object layouts based on real environment and device requirements. At this session we will talk about existing experiences made for HoloLens, ideas and decisions behind them. We will also take a look at general recommended approaches of creating HoloLens experiences and common mistakes people make when start developing for HoloLens.