N64:
unconfirmed:
Ogre Battle 64 (J) (v1.0)/rev 0
GBC:
Gakkyuu Ou Yamazaki (J) (v1.0) unconfirmed
Jissen ni Jakudatsu Tsumego (J) (v1.0) unconfirmed
Kawaii Pet Shop Monogatari 2 (Japan) v1.1 6FCE1AD0
Monster Traveler (J) (v1.0) unconfirmed
Sanrio Timenet - Kako Hen (Japan) v1.1 6555B740
Sanrio Timenet - Mirai Hen (Japan) v1.1 179DA7F3
Shin Megami Tensei Devil Children - Aka no Sho v1.1 C1E27556 (DMG-BHNJ-JPN-1)
GB Mono
From TV Animation Slam Dunk (LIMITED Edition) (Japan)
Hyper Lode Runner (Japan) (v1.0)/rev 0 unconfirmed
Pocket Camera (v1.0) (Japan) possibly the number on the back of the camera begins with PC0 instead of PC1
Super Mario Land 2 - 6tsu no Kinka (Japan) (v1.1) (rev A)
Famicom
Ide Yousuke Meijin no Jissen Mahjong (Japan) (Rev 0) 8E066CCB
Mahjong (Rev 0) B8535CA3
Nobunaga no Yabou - Sengoku Gunyuu Den (Rev A) F9B4240F
Pac-Man (Rev B) 2C7D68F3
Pachio Kun 3 (Rev A) AFE03802
Toukyou Pachi Slot Adventure (Rev 0) 52AB2D17
Rare games - not for sale:
Godzilla (Extra Playing Version) 100 exist?
Kinnikuman - Muscle Tag Match (Gold cart) 8 exist - possibly each features a different playable character, for instance "Black Hole", "Pentagon", "Mongolman"
Kinnikuman - Muscle Tag Match - Shuueisha Jidou Bunko Otanoshimi Present ban (green cart)
Meimon ! Daisan Yakyuubu (Gold cart)
Obake no Q Tarou - Wan Wan Panic (Present ban) 100 copies were provided in a game tournament
Star Soldier Rensha Sokutei Soft (Time Trial)
Not for sale cart - probably identical to retail version
Binary Land (Gold cart) same code as retail-cart (HFC-BI)
Dragon Ball Z Kyoushuu Sayajin '90 LIMITED EDITION (gold cart) 90 exist
Dragon Ball Z II - Gekishin Freeza!! ('91 Jump Victory Festival Memorial Version) 100 exist
Kung Fu same as USA-version according to fcking
Rockman 4 (gold) (8 prize carts were produced for the designers of the games' 8 bosses. Gamecode matches retail-cart (CAP-4V))
Top-Rider (Kirin Mets Racing Team Yamaha) normal cart bundled with a bike? game-code matches retail (VRE-R1)
Zippy Race (red cart) same gamecode as retail (IF-01) (more info needed)
Q-ta Adaptor games
Kikenbutsu no Yasashii Butsuri to Kagaku
NHK Gakuen 4nen - Jyou
NHK Gakuen 4nen - Ge
NHK Gakuen 5nen - Jyou
NHK Gakuen 5nen - Ge
NHK Gakuen 6nen - Jyou
NHK Gakuen 6nen - Ge
Unconfirmed not for sale games (various systems, not picture proven):
MAGICAL TARURUTO KUN 2 GOLD CARTRIDGE
OHOTUKUNI KIYU+INVESTIGATION NOTEBOOK (???????? ????) ??? "300 made for the book" - Info needed
SAINT SEIYA PEGASUS RYUUSEIKEN GOLD CARTRIDGE
Slam Dunk (Gold cart)
Uranoid II said to be a not-for-sale edition of Arkanoid
Wonderswan
Dicing Knight (J) -- CRC d451ad81 (not Dicing Knight. (period)) see http://www.geocities.com/xacrow_2001/wsx.html
Wonder Witch Player (J)?
Dicing Knight was dumped but kotobuki vanished before he released it

Super Famicom:
1992 Nintendo Challenge (Japan)
Dai-3-Ji Super Robot Taisen (J) (V1.3) C2941881
Doraemon - Nobita to Yousei no Kuni (J) (V1.1) 55E44983
Ganbare Goemon - Yuki Hime Kyuushutsu Emaki (Japan) (Rev A)
Ganbare Goemon Kirakira Douchuu - Boku ga Dancer ni Natta Riyuu (Japan) (Rev A)
Ganbare Goemon 3 - Shishi Juurokubei no Karakuri Manjigatame (J) (V1.1) 458C473B
Ganbare Goemon 3 - Shishi Juurokubei no Karakuri Manjigatame (J) (V1.2) AF984BC1
Magical Drop 2 - Bunka Housou Special Version (Japan)
Pro Mahjong Kiwame (rev. A)
Satellaview BS-X (Japan) (Rev 0)
Shin Chou Kouki (Japan) (Rev A) 1A77CF3B
Shin Megami Tensei II (J) (V1.1) 84268A75
Shodai Nekketsu Kouha Kunio-kun (Japan) (Rev A) 5DF55465
Super Jinsei Game 2 (rev. B)
Super Mahjong Taikai (Japan) (Rev B)
Super Shougi (rev. A)
Tsukikomori (JP)(v1.1)(NP) F37C6726
Mega Drive:
DAVIS CUP TENNIS
DYNAMITE HEADDY SAMPLE
FIFA SOCCER
GO NET
NBA PLAYOFFS - BULLS VS BLAZERS (verification/version info needed)
NFL PRO FOOTBALL '94
OSAKA BANK MY LINE
OSAKA BANK MY LINE DEMO
ROAD RASH
SUMISEI HOME TANMATSU
TOM & JERRY
VALIS III 1.0
WONDER MIDI
WORLD CUP SOCCER 1.1
WORLD OF ILLUSION 1.1