JailBreak Tweak : Infinifolders
Infinifolders is a jailbreak app that lets you have an unlimited number of icons in any folder. Apple by default limits you to a maximum of 12 app icons per folder. With Infinifolders you can add as many apps as you want to your folders and just swipe up and down in the folder to view them all. If you find it annoying to have 5 different games folders, that is if you have too many apps like me, the twelve max limit in iOS is annoying you, & you are jailbroken, go get this app right away.
Simply drop as many apps as you like inside a folder and scroll them up or down. It also adds a handy folder badge telling you how many apps there are inside.