Prices in US dollars, not including shipping. Tons of references available. I can ship anywhere. As an estimate, I can fit up to 6 Sega carts in a flat rate box, anywhere in the US for $5.20 and $15 international. Payment via cash/check/MO or Paypal gift. I can accept regular Paypal payments if the buyer agrees to cover the fees.
Sega Mega Drive / Sega Genesis
Some carts are in universal notched shells, others in Japanese style shells. All are loose carts unless noted. All of these are tested & working, but since some are designed for clone hardware they may require a Game Genie or similar device to work on a stock console. I can check this out on each individual cartridge if need be.
Single game carts
Bare Knuckle III Director's Cut - $15 (Hack with new stages translated to English )
Death Caliber - $10 (Unlicensed Russian Lethal Enforcers type shooter)
Fervias Frustradas do Pica Pau (Woody Woodpecker's Frustrated Vacation) - $10 (Pirate of Tec Toy original release)
Futbol Argenteno '96 - $15 (Spanish language, boxed, undumped, based on a Tecmo Soccer game)
International Superstar Soccer '98 aka Ronaldinho Soccer '98 - $10 (Portuguese update of Konami ISS Deluxe)
King of Fighters 2000 - $10 (Unlicensed original, hack of '98)
Lord of the Rings 3 $15 (Unlicensed fighting game)
Metal Sonic Overdrive - $12 (Unlicensed awesome Sonic hack)
NBA 2000 - $5 (Hack of NBA Action)
Pirates of the Caribbean - $8 (Russian language, hack of Cutthroat Island (I think)
Shui Hu Feng Yun Zhuan - $13 (Unlicensed beat 'em up)
Street Fighter II Turbo Beta - $10 (Unfinished beta, very different from final)
Super Mario World $10 (Squirrel King hack featuring Mario & Luigi)
Tekken Special - $10 (Unlicensed fighter)
Tekken VS Virtua Fighter - $10 (Unlicensed fighter)
Warioland 3 - $9 (Sprite hack of Puggsy)
Sonic the Hedgehog - $8 (pirate, includes UGC + laser printed insert)
4-in-1 $8
Bare Knuckle/The Streets of Rage, Robocop 3, Sunset Riders, Evander Holyfield's Real Deal Boxing
Super 5-in-1 $15
Contra Hardcorps (J), Double Dragon II (J), Mickey Mouse & The Castle of Illusion, Binimi Run, Super Chase HQ/Chase HQ II
Super 7-in-1 $11
Road Rash, Turbo Outrun, Roadblasters, Super Offroad, Megatrax, Super Chase HQ/Chase HQ II, Super Monaco GP
*Megatrax is known as Quad Challenge in the US
Super 7-in-1 $10
Midnight Resistance, Alien Storm, Greendog, Batman, Megatrax, Street Smart, Tora! Tora! Tora!/Fireshark
*Megatrax is known as Quad Challenge in the US
Super 7-in-1 $10
Golden Axe III (J), Super Hang On, Afterburner II, EA NHL Hockey, The Flintstones, Robocop 3, The Little Mermaid
*GA3 still has the country protection intact. Need a switched console, Megakey, or Game Genie to work on a US NTSC Genesis
Super 7-in-1 $8
Talespin, Snake Rattle 'N Roll, Mickey's Ultimate Challenge, Tora! Tora! Tora!/Fireshark, The Aquatic Games starring James Pond, Quackshot, The Little Mermaid
Super Nintendo / Super Famicom
All are loose carts.
Soul Edge VS Samurai Spirits - $70 (Unlicensed original, SNES shell)
Tekken 2 - $35 (Unlicensed original, SNES shell)
6-in-1 - $35 (SNES shell, includes Sonic the Hedgehog 4 hack)
X-Men VS Street Fighter - $50 (Unlicensed original, SFC shell)
Gameboy Advance / GBA
All of these are brand new, boxed with instructions. I'd have to ship in a cardboard box so their boxes don't get squashed, unless you want me to flatten them and send in a bubble mailer for cheaper postage.
Contra: The Alien Wars EX - $8 (US, pirate)
CT Special Forces 2: Back to Hell - $8 (Euro, pirate)
Digimon Sapphire - $15 (Unlicensed action/platformer)
Doom II - $8 (US, pirate)
Double Dragon Advance - $8 (US, pirate)
Kirby's Red Star Diamond - $8 (Emu of the NES game)
Teenage Mutant Ninja Turtles II: The Arcade Game (Emu of NES game)
Famicom
All are loose carts.
YH-432 4-in-1 $3
Aladdin III aka Magic Carpet, Street Fighter 12 Peoples, Super Contra (J + trainers), Superstar Pro Wrestling aka WCW Wrestling
700-in-1 Cart - $10 (C) Many repeats
Kyourtuu Sentai Zyuranger - $5 (C) J version (Power Rangers), pirate
Legends of the Diamond - $5 (C) US version in FC shell, pirate
Robin Hood: Prince of Thieves - $5 (C) US version in FC shell, pirate
Sold items
CT Special Forces 3: Bioterror - $8 (Euro, pirate)
YH-4115 4-in-1 $3
Digimon Ruby - $15 (Unlicensed RPG in the English)
A Bug's Life - $35 (Unlicensed platformer, SNES shell)
Super Aladdin II - $8 (Emu of the unlicensed Famicom version of the SNES original)
Street Fighter V Turbo 60 Peoples - $10 (C) Pirate
A Bug's Life - $10 (Unlicensed platformer)
Golden Axe III - $10 (Country protection removed)
Samurai Spirits II - $10 (Unlicensed port of the arcade game)
Soul Blade Super - $10 (Unlicensed fighter)
Soul Edge VS Samurai Spirits - $60 (Unlicensed original)
Super Mario World 64 - $65 (Unlicensed port of the SNES game)
Top Fighter 2005 - $10 (Unlicensed fighter)
Contra Force - $8 (Emu of the NES game)
Crash Bandicoot 4 - $8 (Emu of some weird hacked version of Choujinrou Senki Warwolf for Famicom. Dated 2005)
Spiderman 4 - $5 (Emu of NES version of Spiderman: Sinister Six)
Star Wars 3 - $8 (Weird Space Invaders knockoff)
Korean 30-in-1 - $20 (Mark III SMS games, actually about 13 games, includes unlicensed Super Tetris)
Aladdin II - $10 (Unlicensed port of the SNES game)
MD 16-in-1 - $15 (Mark III/SMS games, actually about 12 titles)
The Lion King 3 - $8 (Emu of the Famicom unlicensed original)
2-in-1 $12 Wonder Boy III / ALESTE aka MUSHA
Squirrel King - $10 (Unlicensed original)
4-in-1 $8
4-in-1 $8
4-in-1 $8
Bare Knuckle/The Streets of Rage, Alien III, Sonic the Hedgehog, Caesar's Palace
Super Mario 2 $10 (Version of NES SMB1 w/All Stars graphics)
Mortal Kombat 6: 28 People - $10 (Hack of MK1)
Batman - $9 (pirate, includes UGC + laser printed insert)
Mighty Final Fight - $8 (C) J version, pirate
Futebol Brasileiro '96 aka Campeonato Brasileiro III - $15 (with original box)
The Lord of the Rings 2: The Two Towers $9 (Hack of Rings of Power)
4-in-1 $8
Super 7-in-1 $10