Loved the use of physical collisions altering the initial trajectory of other objects being flung about.
I was confused by the non-typical objects floating around at first, but I came up with the theory that the black hole ingame is in fact a super-massive black hole that is expanding swallowing up our universe.
This would explain the warning at the start of the story and why I see stuff such as doors and sofas being tossed about - Earth was eventually caught in the horizon, starting near the Middle East, and several Ikeas.