My favourite firework video on the internet is this one, where 45 minutes worth of fireworks are accidentally detonated all at once on July 4th 2012 in San Diego. I had tears in my eyes, sobbing the first time I saw this. The sound is magnificent. It's the end of days.
#deltarunespoilers
Not ONLY this, but the beginning piano notes are the same as when you save the game in UT/DR!
(Same technically goes for Field of Hopes and Dreams)