Today I received an email from Nintendo Australia saying, I had won a free game. Heres part of that email :

Dear nintendo.com.au member,

Congratulations!

Nintendo Australia would like to congratulate you on being selected as
one of the lucky winners of our Gunstar Heroes Giveaway

Congratulations once again,

nintendo.com.au Team
Nintendo Australia P/L

Funny thing is, I don't remember entering the competition. Hey, I never mind freebies.So, I would like to thank Nintendo™.