Pokémon has just revealed a new Pokémon Music Video, titled "Catchatronic," along with the website GottaCatchEmAll.com. This is all for their new Gotta Catch 'em All promotion, where people have a chance to win cool Pokémon prizes, including copies of Pokémon X & Y and even a 3DS XL, as well as other digital downloadables. The prizes are, unfortunately, available for the US only according to the contest rules.
After registering on the site, you'll be prompted to enter a special password that was revealed in the video above in order to get to the main section. What's that password?
The password is "XY1012", without the quotes.
From now until October 12th, though, Pokémon will be hiding passwords that unlock some of the Poké Balls on the page after you've registered, which give you both a chance to win prizes (US only) as well as a digital download of some sort.
Checking through Pokémon's social networks, on Facebook and Twitter, is what they recommend in order to find new codes to unlock until the release date. The @Marriland Twitter is another helpful Twitter account to follow, as I'll try to post whatever codes I come across there!
EDIT: Here's a complete list of all of the codes and their prizes:
X3K5 = Chespin
X7Q5 = Honedge and Movie 15 Ringtone
Y8P4 = Pancham and Season 14 Ringtone
X4Q8 = Dedenne and Phone Alerts (Turtwig, Chimchar & Piplup)
Y3F2 = Pangoro and Phone Alerts (Charizard, Jigglypuff & Meowth)
X9K3 = Malamar and Phone Alerts (Eevee, Psyduck & Wobbuffet)
Y2P6 = Noivern and Wallpaper (of Manga Characters)
X7C9 = Helioptile and Wallpaper (Mega Absol)
X5H8 = Fennekin and Phone Alerts (Oshawott, Snivy & Tepig)
Y4L6 = Skrelp and Season 15 Ringtone
Y5B6 = Spritzee and Pokémon TCG Online Booster Pack code
X2R4 = Bunnelby and Wallpaper (Mega Mawile)
Y6J5 = Sylveon and 28-page Manga Preview
Y8H7 = Yveltal and Phone Alerts (Charmander, Bulbasaur & Squirtle)
Y9D8 = Gogoat and Season 16 Ringtone
X8T9 = Litleo and Wallpaper (Mega Lucario)
Y6V8 = Talonflame and Wallpaper (Mega Ampharos)
X4C7 = Clauncher and Phone Alerts (Chikorita, Cyndaquil & Totodile)
X5T3 = Swirlix and Manga Preview
Y3S7 = Skiddo and Phone Alerts (Mudkip, Treecko & Torchic)
X6P4 = Froakie and Pokémn TCG Online Booster Pack code
X7M4 = Xerneas and Wallpaper (Mega Blaziken)
X5W8 = Fletchling and Manga Preview
X8G5 = Inkay
XY738A = Free entry to the contest (no other prizes)
Please note that you can only enter 24 codes per week, so if you want to complete the set, you cannot use the free entry code otherwise it will spit out an error saying your final code is invalid, regardless of what it is. Also, sometimes codes randomly don't work or files can't be found. These are the codes that I personally used this morning and they worked, except for Inkay, which was because I used the free entry code.
UPDATE: If you are having problems with any of these codes, please do not contact me about it, but contact Pokémon instead, as there is nothing I can do about it and there seem to be quite a few bugs in their system currently.