I just finished a new tutorial on using a mouselook script in the game engine for FPS controls. The mouselook script features a limitation on view rotation to make sure the camera doesn’t continue looping around when you’re looking straight up and straight down. Plus learn how to add real text in the game engine(not bitmap fonts), word wrap long strings into multiple lines, change the font resolution, and learn how to change the text in game. Check it out:
http://www.cgmasters.net/free-tutorials/fps-mouselook-script-plus-real-text/