A update code is a code that gives your progress from that skylander in the video game(Skylanders spyro's adventure).You will find the code on the wii,xbox,or ps3.
Ebay
you can find at best buy
You can find it at Gamestop.
walmart
Skylanders are basically toys, but they are not Spyro. Try eBay.
If you see somebody playing with Spyro, go to the chat thingy and go to where it says "Hi" then find the player playing Spyro's name.
Google, Yahoo, Bing, Video game guides (Spyro: A New Beginning Spyro: The Eternal Night Spyro: Dawn of the Dragon), video game booklets, etc.
find out when you buy dark spyro, ignitor and stealth elf
http://www.geocities.com/redikku/spyro-big.gif
I hate to say dark spyro is only in the 3ds bundle. You might find one on ebay but if you use dark spyro in the console games the only difference is his color. In 3ds he shoots lightning.
spyro is not in super smash bros brawl but he did become Mario to find out watch spyro 3 revence of Mario