Let’s start with Sega.
A Katana with Ecco source code:
SEGA DREAMCAST KATANA Hardware development kit WITH ECCO II SOURCE CODE
Unreleased goodness! True Grail!
Proto for your NES:
Darkman NES Proto
A good proto from a great collector!
2 GBA dev carts, ready to host some protos:
2 Nintendo Game Boy Advance empty dev carts
Same seller. Great items, but I hope that he never starts working as photographer!
boxing fever gameboy proto
SNES mega man x3 prototype
Game Boy protos:
hexcite gameboy game boy proto
Nintendo promo item & game:
NINTENDO Gamecube – Promotional magnet toy
Two rare and chap (at leas now) G&W:
NINTENDO GAME & WATCH YM-901S SuperMarioBros NIB
Great shape for the most known rare G&W. Competition prize for the Japanese market.
NES Test Station for Authorized Centers:
nes test station
Atari protos, testÂ & sample:
Atari 1400XL Prototype Computer System & Schematics
Working hardware proto!
Satan’s HollowÂ arcade chips, sold as proto:
SATAN’S HOLLOW EPROM ROM SET PROTOTYPE Arcade
Proto or not?
Today’s search it’s very proto-oriented!