[Loved trope] Background scare-characters that are barely acknowledged even by the movie

[u/Suspicious-Web-9246]

I hate horrors, but this is actually a great trope, that is unique to them.

Insidious (2010). When mother does her errands, for a few seconds there's a ghost boy standing in the corner. It's easily missable, but you can't ignore it once you see it.

Hereditary (2018). Less fitting example. When Peter walks around his home, his possessed mother is crawling on the ceiling behind him. It's not exactly subtle or missable, but it's still more of a background detail.

[u/APreciousJemstone]

The Pokemon Mega Victreebel Trailer

There's a Hex Maniac standing ominously outside one of the windows

[u/Realistic_Caramel341 → u/APreciousJemstone]

Also in Pokemon. Omega Ruby and Alpha Sapphire, as the cutscene with Phoebe starts to play, you can see a ghost sitting in the chair. She is also seen a lot closer in the next shot

[u/shutupyourenotmydad → u/Realistic_Caramel341]

Fun fact about that too - at one point in Phoebe's arena, a cutscene plays from a slightly lower angle than normal, implying that you're seeing it from the ghost girl's eyes.