It's all just a lot of cutting and gluing. It's a lot of fun though! You just print them templates out and start building. I get all my pokemon models off paperpokes.net because they are AWESOME! The link to paperpokes is in the description if you want to have a look for yourself 
oh cool it did not see any templates on the link..but they look fun
You have to download the templates that you want 
there is a button under the pokemon that says A4/Letter. You click on which size you want and it will download the template. Sorry, I should have been more specific
there is a button under the pokemon that says A4/Letter. You click on which size you want and it will download the template. Sorry, I should have been more specific it's okay i may try making a some it looks fun