Nope. It is better to set a simplified invisible model for collision instead.
If this model for the collision doesn't move, you can sat it to static: http://www.conitec.net/beta/aentity-dynamic.htm

http://www.puppenheim.org/
http://www.wuerfels-welt.de
Old Game Tutorial: http://www.puppenheim.org/MITutorial.zip
Free Game Editor: http://puppenheim.org/AlienalsWeihnachtsmann.zip
http://www.puppenheim.org/blender_starting_main_settings.txt