i didnt understand a word he said. Mostly cause i dont understand Max
What Grey means is that he completely object-oriented his framework code. If you don't understand Blitzmax OOP, try reading this tutorial:
http://www.blitzbasic.com/Community/posts.php?topic=59233
How is "Game.MainLogicLoop()" different than calling a function like "MainLogicLoop(Game.GameType)"?
There is no difference between the behaviour of "Game.MainLogicLoop()" and "MainLogicLoop(Game.GameType)". The difference is that "Game.MainLogicLoop()" is more readible and easy (which is what OOP is really all about).