Somehow, I've never noticed commercials for this
I understand nothing of the Yu-Gi-Oh
card game, other than that it seems to be a commercial property specifically developed to be simultaneously launched as an animated series and collectible card game. This, thus, seems to be an arm-mounted game board.
An arm-mounted game board
I'm torn. That's both the saddest thing ever (what kind of kid can't be bothered to sit down to play a card game?) and the most fantastic; arm-mounted boards certainly would have been handy for playing Magic
back in the day, though I'm sure wearing godawful contraptions such as this would have invited even more abuse from the non-geek community. Kids today don't know how good they have it, where this kind of thing is a viable accessory to own for playing cards.
(Sweet Lamprey of Santa Fe. I actually used the phrase "kids today." I feel old.)