There are 2 ways to get Stardust. One is to unlock the pack "The Duelist Genesis", which can be obtained by defeating the following duelists 3 times each: Barclay, Shuji, Taniyama, Ellison Noula, Skathi, Yagishita, Geruzet, Motoi, Kyono, Fudagawa, Dio, and Vega. Stardust Dragon appears as an Ultra Rare in that pack.
The other way is to use the card password for Stardust Dragon (44508094) but only after you've unlocked the card, meaning you'll need either a high completion percentage of cards on the Duelist Genesis pack or to have previously obtained Stardust Dragon in the Duelist Genesis pack.
Of course you could always cheat. :P
Chat with our AI personalities
Summon it in a duel
Slifer the Sky Dragon does not have an official passcode; therefore, it cannot be obtained in Stardust Accelerator by password.
Where is the pipeline in yugioh 5d's stardust accelerator
Yes, it can be obtained as a gift from Yusei for defeating him a number of times. It can also be obtained in "The Duelist Genesis" booster pack.
There is no such card as Armed Dragon LV9. There is Armed Dragon LV7 and Armed Dragon LV10. Check GameFaqs to find out how to get either.