This is an interesting auction. Concept/proto cover artworks for the different system, straight from the liquidation of Acclaim, in 2004.
Nice Donkey Kong Cereal Original Animation Cel
SONIC THE HEDGEHOG #133 ORIGINAL COMIC ART PAGE SHADOW
Isolated Warrior Official Nintendo Vidpro Display Card
Saturn development kit, debugger system + PsyQ cart
Nintendo NPDP Reader