9. Hector Goes Full Demon (Paranormal Activity: The Marked Ones)
Jesse's grandmother attempts to cleanse him of his demonic sickness, but only ends up exacerbating things when the lights go out and, as Hector uses the night-vision camera setting to navigate his way around the apartment, he sees the living room begin to warp inward on itself. It then explodes into a flash, bringing the lights back on as Jesse appears, floating in the middle of the room with his demonic abilities causing the room's contents to fly around. It's probably the craziest moment in the whole series effects-wise, and despite the low budget is pulled off with unexpected elegance.