*Takes place either on your couch while you’re using your smartphone or in front of your computer, the angle is as you prefer*
I am so bored right now… What should I do… Watch a movie maybe? Check mails? Hmmm, what’s this? Oh, it’s another of these job ads… Hmmm? Becoming a civilization destroyer… That’s weird, let’s check the details… Giant monster… part-time job… punishing dangerous species… no experience required… The pay is nice for such a job, and there even is some extra if I complete additional objectives. 
Ok, let’s check this mission, it’s recommended for new recruits… I only have to destroy one city, but… Oh wow, I have to fart on it? I didn’t expect this but ok! 1% of the population has to survive in order to get some extra money… It shouldn’t be too hard. The idea is actually quite exciting, even if it must be horrible for the tiny people living there… I really want to obliterate a city with a fart now… I guess I must be some kind of pervert. Alright, let’s apply!
*The angle is a global view of a tiny city model with you next to it. You can wear whatever you want or be naked, your choice!*
Is it the correct location? But where is the city?
*You take a step right next to the city*
What did I step on? Oh, is that the city I’m here to punish? It’s so tiny! Oh shit, it seems I crushed the suburbs… Sorry little people, I’m enormous! Well, I’m more sorry for you because of what will happen next. The reason I’m here is because you are overpopulating your planet, so I need to teach you a lesson. In order to make a lasting impression, I will be a little cruel. I’m going to fart on your city to decimate your population. I suggest you start to hide somewhere safe immediately! You hear me? Run NOW! I don’t want everyone to die because I will get extra money if some of you survive. Of course, if you don’t take action and stop overpopulating, more punishments will happen.
*The angle shifts from a city POV with your ass above it*
Are you ready tiny ones? Don’t scream, don’t cry, don’t beg for mercy… I don’t care about it. Raise your eyes and admire my massive ass! It’s the last thing many of you will ever see. Oh, here it comes! Breath in everyone!
*fart* *The angle shifts back to either your face or a global view of the scene*
Oh wow, I can’t believe I’m actually doing this! One hour ago I was just doing laundry and now I just farted on an entire city! This is so exciting! I really wonder how many people I just killed right now… How many of them exploded because of the sound, or how many got blown away. So many are probably still suffocating from the smell alone. I can’t believe one of my farts decided the life and deaths of millions… I can’t even be considered a normal woman anymore, I’m a goddess to these people!
Let’s see how many survived… What? Zero?! How?! There were millions of people inside the city, there is no way I have killed them all. They are so weak, They couldn’t handle a single fart! That’s so pathetic. These stupid, worthless bugs made me lose my bonus! Fuck them and their species. Hmmm, it’s ok, at least I had fun. But once I get home I will see if there is another mission available, because now I really want to wipe out another city to destress. And to anyone who hears what I say, I will let you know that I will accept all missions on your planet, even if I end up exterminating billions of you with my farts! I will have no remorse to do that to a species as puny as yours! Bye bugs, good luck with cleaning your dead city.