the hu-cards

[TR0N]

Because

Japan=Names that sound cool

US=Names that adults think sound cool to kids but don't

Could be then again a lot of, TTI marketing backfire back then

[vestcoat]

Also HuCards were probably cheaper to make, so that's another benefit for NEC and Hudson Soft.

Which is why I don't understand why Sega didn't put more out for the SMS.

Even if they didn't hold much at first, how big could the average SMS game have been.

Also(back to the PCE), small games + small hardware = 3 times the shelf space in stores.

Again, way ahead of its time.

I'm not positive, but I think there was a size limit on the SMS CARD games (since they were for budget titles). All of the CARD games I have are pretty basic (i.e. Spy vs. Spy), though I might be forgetting some kool title.

At a certain point, making the ROM bigger in the SMS CARD would have raised the price of the "budget" game to be comparable with a regular SMS cart, thus defeating the pricing structure of cart vs. card games.

I'm not sure if there were hardware limitations in the SMS console as far as cards were concerned, but it would be neat to find out.

I have a copy of Spy vs Spy in the form of a cartridge.  is this very rare?

[GUTS]

Most of the cards were re-released later on as cartridges so probably not.