Please tell me the reason why the speaker used "halt" instead of "stop". Is there any difference?
When used as nouns, "halt" means a stop, either temporary or permanent, whereas "stop" means a (usually marked) place where line buses, trams or trains halt to let passengers get on and off, usually smaller than a station. When used as verbs, "halt" means to limp, whereas "stop" means to cease moving. In the case of this video, as he is dressed as a superhero, he is using "halt" to mean stop. He probably chose it because 'halt" is more formal and dramatic which matches his character of being a superhero. It is key to note that the phrase "halt" is not commonly used in this way as it is so formal and kind of outdated.