These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Inferred Holocaust: Yu defeats Colonel McDougal, but not before the boy activated Noah's Ark to cause a rapid increase to the planet's global warming cycle, causing tidal waves and hurricanes to spawn all around the globe. When the camera pans up in the finale, the earth is shown to be completely reshaped by the massive flooding.