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.
Tear Jerker: After creating Mirage Mewtwo, Mirage Master orders it to attack the other Mirage Pokémon. It does so and they are all wiped out. What makes this sad isn't so much that those Mirage Pokémon where destroyed (they really had no will or identities of their own). What makes it sad is Mew's reaction, it floats over to where they were all standing a moment ago and looks around with a mixture of confusion and sadness. Like it actually cared for it's holographic brethren, and like a child can't fully comprehend what's just happened to them.
Mirage Mew's first apparent death, and it's real demise later.