Three new passwords for Pokémon Rumble Blast have been announced. Players can enter the passwords by talking to Munna in Easterly Town and then visit the area were it gets unlocked. The Amazon.com pre-order Tornelos's password is: 02507321, the Pokémon Trainer Club PokéTC Oshawott's password is: 74032240 and the Nintendo 3DS SpotPass Galade's password is: 35356928. Nintendo Channel also updated and posted the password for the Effective Gliscor and its password number is: 96257845. Our password page has been updated with these passwords.

Press Release

Check your Pokémon Trainer Club Mailbox for a password to get a special Oshawott in Pokémon Rumble Blast!

Pokémon Rumble Blast for the Nintendo 3DS system is now available in stores. To celebrate, we’re giving away a password that will unlock an exclusive Oshawott in the game! Check your Pokémon Trainer Club Mailbox for a special message that contains the password. You can access your Pokémon Trainer Club Mailbox either by visiting your “My Profile” page or by clicking the envelope icon in your Trainer dashboard.

To enter the password in your Pokémon Rumble Blast game, you’ll first need to reach Easterly Town, the second town along your journey. Once you get there, talk to Munna, who will ask for your password. Enter the password to unlock the special Pokémon. Oshawott will be waiting for you somewhere in Toyland, so keep an eye out for it as you explore!

To access your Pokémon Trainer Club Mailbox and get the password, you’ll need to have a Pokémon Trainer Club account.

Source: http://www.pokemon.com/us/news/vg_rumble_blast_password_1-2011-10-24/

I found a new password on GoNintendo :

9625-7845
for a Gliscor with the Effective trait
1474 strength
knows X-Scissor

Thanks, I've added it to the passwords list. http://www.pocketmonsters.net/Super_Pokemon_Scramble_Passwords