Found a better video for the door lampost thing... you can see it more clearly as the doors open and the lamp falls. The way it is is the only way I could get the link to work. -sonicx3- 21:29, March 18, 2010 (UTC)
About that lamp thing... I've seen it twice now in two different videos... maybe it's not triggered by anything special? Perhaps it just happens when Puffy's defeated and no one's noticed before? (Someone else would have to investigate this in-game... I don't own NID.