In Russia we had so-called Dendy[1] (hardware clone of Famicom made in Zelenograd) which had that exact vertical slot. Guess what, we used to blow into our cartridges too when they didn't work.

[1] Actually, history of game consoles in Russia in early 1990s is quite curious. Nintendo themselves weren't interested in our market, so Russian-Chinese manufacturers promoted their clone quite freely. I believe it was even better than original famicom, since original controllers were detachable and easily replaced and also it came with a lightgun. Cartridges were cheap and abundant, about $2-4 each. Also there was a lot of 10-in-1 (100-in-1 even) catridges. After SEGA released their mega drive 2 console in Russia, dendy business started to decline. Look at this pic: http://upload.wikimedia.org/wikipedia/commons/6/67/Dendy%27s... Ridiculous bottom-left cartridge with the picture of Morpheus from the Matrix and hilariously named FBI was clearly released in 1999 or later. Anyways, all our favorites were the same with the rest of the world: mario, contra, battle city (this one was a real hit! everyone had it). Ah, sweet times.

Thanks I never heard about Russian market and that you were left without original NES ! I only knew about few South America clones.

Ah, my Family Game, how many hours did I invest in it while growing up? Those "999 in 1" cartridges were awesome :)

What about Rush'n'Attack? Did Cold War favorites cross over?

Unfortunately, never heard of it. Watching the video of it gave me a chuckle though.