Click on the m at the corner of the screen and click on become a secret agent
Old penguin news
If you look at the 1st Speaker on the right. Find that speaker and click on it. Once you've clicked on it, you will enter a room and you must look for a cabinet. One of the parts in it opens click on that part and you will see a whole pile of newspapers. All of them are old newspapers. Click on one and you will be able to read it.
Get a spy phone
Do the secret agent cheat.Plus you can enter the hq and read the hand book.
Astro barrier secret levels
Play up to level 10 on astro barrier & wait 25 seconds.You will see a blue space ship.Shoot it.You will now enter the astro barrier secret levels.
Go to the light house.Click on the box of fish and click the door then quikly click the top of the light house and you'll walk up the wall.
A Cheat penguin
Type in the user name box:zvcg564 and in the password box type:pokeey.It works.Honest.It only goes wrong when someone else is on it so dont be offended when it dosent work.