2 player split screen

Does any body know how to create a scene where its just 2 players
without interfering the single player mode and the main menu please
refer me to a code ( script ) that works.
and to see if maybe its possible for four players.
(i already know how player 3 & 4 will play,they will use controllers)
all i need to know is how am i going to put 2-4 screens for each player
on the PC.

Examples:!!!These games below !!!
(Games i have played before) Blur and split second velocity.


and

And is blender capable for creating such views?

!!! Pllease if anyone can help me !!!

This ought to help you out: http://youtu.be/-NC7ZtKcG1U

above link uses the same script as the origional;
http://www.tutorialsforblender3d.com/Game_Engine/Viewports/Viewport_2.html

or 2.6-2.7
http://gametutorials.tutorialsforblender3d.com/Viewports/Page1

the original is at blender.org :wink: