So many questions. Why is she dressed like that? Why is the audience in the background shocked? Why is it upscaled? Why do the vocals look like it's from either FL Studio or Moonbase Alpha?
The name of this movie is Metropolis (Quoted from pixiv encyclopedia) In a scene in the movie, a robot modeled after Maria performs a dance, captivating the audience. The figure when performing this dance is based on the motif of the great prostitute Babylon. In this scene, I added lyrics to the Super Mario RPG BGM and had the robot sing it. I don't know how it was upscaled.