This is really well-made! The visual style is charming, and the mechanics present are implemented smoothly. I love the preview shader you have for placing the Out of Order sign, as well as the mechanic of using the sign itself! I also noticed that the audio didn't start until I touched the audio slider, so make sure that it gets initialized correctly. I would also recommend having a separate camera for showing the arms to the player on an overlayed display, because although the way you have it now is more accurate to how the arms would be placed in real life, in games, the arms and held items are typically always visible in the camera's view to give the player more immersion (ironically, since it's less realistic) and information about what they have or are doing. If you don't plan on making this multiplayer or having mechanics that require the player to see the player model from an outside view, you could even simply reposition the arms so that they stick out from the camera, with a little sway when looking around. In conclusion, this tech demo is amazing! Great job making all of this so soon, and making it feel so polished despite not having full levels or art assets!