Also decided to get a used DS game without a box.
It's Yu-Gi-Oh! 5Ds Stardust Accelerator which is the "World Championship" game from 2009.

With the recent selling of the Yu-Gi-Oh! Franchise who knows if it's gonna be around much longer.
There hasn't been a new game since 2011.
If there was one, it should have come out about now.

I noticed that even Wall-Mart is stopping stocking of the card game.
They seem to be clearancing out all the old stuff.
So if your interested you could get some older starters/theme decks at about $7.
Toho's Godzilla Will Live Forever!