You must have learnt about Easter Eggs in Games and Softwares but it is rare to find Easter Eggs in Websites.
But surprisingly even Google Reader has got an Easter Egg in it.
To apply the easter egg press on your keyboard
up up down down left right left right b a
You will notice a strange change in its layout and it will get a Ninja Theme with Ninja! written in the search box 
Also the feeds which had content in them when you started reader will have 30 unread items and still your total item count will remain 30 
.
[via Google Blogoscoped]
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Haha awesome man
Only technoworld offers these stuffs 
ya i play the game on my mobile and it;s gr8 to know that my favorite reader(after newsgator) also has the same game.
Good Finding Sid
thx Ajay
good search dude
thx mayur
Wow .. amazing … I never knew google will work out such stuffs ..
However , if you want to switch it back … use the same sequence … I know you guys know it already
I tried it twice and got it
lmao the Konami Code.
http://www.eastereggshunt.com/ hidden easter eggs hunt ,this is an official website for easter eggs search