How to Link Internal Storage to External SD Card using Foldermount APK Android

Allright, now come another tips to "trick" the limited of internal storage (or phone storage) size on your Android smartphone. Like my Samsung Galaxy V (Kitkat 4.4) only have a 4GB phone storage size, it's taken by the system 2GB, so my internal storage size for installing app and save other files is just 2GB (so pity :v ). But how if I want to install the GTA San Andreas that have 2.5GB game