Atari! 

Atari 2600 & 5200 protos:

Atari 2600 Prototype Lab Game Cartridge * Oscar’s Trash

Atari 2600 Prototype Lab Game Cartridge * Snoopy

Atari 2600 Prototype Lab Game Cartridge * Donald Duck

Atari 5200 Prototype Lab Video Game Cartridge * Sport Goofy

Atari 5200 Prototype Lab Video Game Cartridge Gremlins

Jaguar Alpine dev board:
6MB ALPINE development cart 4 ATARI JAGUAR

A 7800 repro cart:
Unusual repro: Atari 7800 High Score Cartridge

Nintendo

Racermate, complete with Top Loader:
CompuTrainer Pro with Top Loader

For your room:
Big Nintendo display

OEM Game & Watch:
SUPER MARIO BROS OEM G&W

One of the ugliest Luigi ever:
Ugly stuffed Luigi from 1988

Usual Zelda toon cels:
Zelda Original Animation Cel

PlayStation dev items

Ps1 dev board:
SONY PLAYSTATION PS1 DEVELOPMENT BOARD DTL-H2000

PS2 TOOL:
Sony PS2 DTL Development Tool brand new

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