What's the rarest videogame(s)/console(s) you own

[thetonestarr]

I have a blue label copy of Demon Attack for Atari 2600. This makes it probably the rarest thing you're going to see in this thread.

 

I also have mint copies of Pitfall and Pitfall 2 for Atari 2600, a Virtual Boy, and Metroid Prime Trilogy, which is quickly becoming the most valuable game of this generation, selling for as much as $80 used in some places ($135 new on Amazon!).