Slifer the Sky Dragon does not have an official passcode.
no you can not get silfer the sky dragon in a packet but you can buy it. or..... you can make it
There is currently no game-legal version of Slifer the Sky Dragon.
The theme song for when Yugi summons Slifer the Sky Dragon in the Pyramid of Light is called Slifer The Sky Dragon Theme.
Slifer The Sky Dragon goes up to $75
Obilisk the Tormentor, Slifer the Sky Dragon, and Wing Dragon of Ra.
Slifer the Sky Dragon does not have an official passcode; therefore, it cannot be obtained in Stardust Accelerator by password.
Yugi received Slifer the Sky Dragon from Strings per the guidelines of the tournament that each Duelist must ante their most valuable card.
Slifer the Sky Dragon is a God and has no code. If you are playing on the PSP get the Yu-Gi-Oh tag force 1 and it will allow you 3 copies of the Slifer card.
There is currently no game-legal print of Slifer the Sky Dragon. Obelisk has a TCG and OCG print, Ra has an OCG print, so there will eventually be a legal Slifer.
Currently, no. They only just released the Winged Dragon of Ra at the start of this year. I suspect that either close to the end of this year or the next we can expect to hear news about the Slifer the sky dragon..in japan.
Slifer the Sky Dragon, like Ra and Obelisk, are all DIVINE attribute and Divine-Beast type.