Some of those NES and Gameboy games might not work as originally intended. Lots of them had internal batteries in order to save information and those batteries are starting to die. Floppies from that era and early CDs are also at the age in which they are likely to degrade. So while some of this old tech might have a longer shelf life than tech today, as the video says, entropy will get us all in the end.
Well you can still download the rom and the machine is fully emulated, forever. Not sure there is a way to play geometry wars in any fashion. Besides batteries can be replaced and even then you'll miss your high scores but you'll still be able to play.
Most of my floppies are dead, but most NES games did not have batteries, and it's really easy to replace the batteries in the ones that did (it's usually just a CR2032).
