I hate to break it to you but this is a bootleg. (Going by your image.) That or it's a reproduction of the original. Under 10 real copy's are known to exist. Larger version of your image: http://i.imgur.com/jyr7HOK.jpg (http://www.ebay.ca/itm/Tetris-For-S...-Complete-in-Box-CIB-USA-Seller-/172189799012) Pirate/Reproduction of original next to above pirate: https://thesegacollection.files.wordpress.com/2015/05/genesis-tetris-01.jpg Real copy signed by creator: https://thesegacollection.files.wordpress.com/2011/07/mega-drive-tetris-licensed-01.jpg (Game in pic is/was owned by a user on Assembler.)
I always had a thing for bootlegs and hacks, but I guess the strangest game I own must be Picachu, a hack of a SNES game which is crap in every possible way. As for consoles, it has to be my japanese PC engine (modded to output composite video).
Cool never seen a snes pirate like that. Cool mod for composite. I am planning on getting a rgb scart and pal hdmi converter for my sega saturn.
This Pikachu rom hack is really common here in Brazil. It's even possible to find one with a box. This one with the box goes for US$11. Just the cart goes for US$5.
Nice to see one in decent condition, I found mine at a flea market here in Uruguay and never heard about it again.
They are/were very popular here in Brazil. I can easily get one if I want on MercadoLivre. I think I played it when I was a child in a friend's house maybe. I recall it not being very good.
My street fighter 2 Sagat statue only 100 were made and got at con a bargain price £50 instead of rrp of £299.
I don't have a pic of it at the moment but the rarest thing I own is the limited edition Pikachu GBA:SP complete in box. I know it's not super duper rare but it is pretty cool and I love it. I HAD a boxed copy of Earthbound but unfortunately it got stolen during a break in a few years ago.
I'm going to play this game..... rarest thing(s) i own, console wise.. my VA3 mega drive with mega cd and 32x, V-saturn, mist grey saturn with VCD card. sega sports DC, japanese VA0 DC with OEM clear yellow case. PC-Engine W ifu and Cd-rom2. arcade card pro. Rayearth Red Game Gear, Powder Blue Game Gear. Sega Nomad, Sony PSX, PS3 TEST DECH-A00A, Neo Geo CD. blah blah blah the list goes on and on. lol heres some pics of my junk, not all http://imgur.com/a/OsILG