That's a very good question! It took me some time. Before you use the corn seeds, search around the area. It's right beside the ladder, well around there. Once you click a certin spot, a river will appear and the snake token will be on the other side. Use Chill (white elite puffle) on the river. and you will get the snake token!
by beating
On your spy phone.
the code is 3000
In the corn patch
Blue
in the epf head quarters
his pass is clubpenguin sensei
its easy (i think) :)
it changes so there is no exact code
purple and green
go on a cheat guide blog
You just follow the trail of corn.