Hey. So here’s a resource to disable mip-maps in runtimes made with Blender 2.5. There are issues - it will restart the executable when it runs, and it doesn’t work for Multitexture mode. Still, it’s a pretty good script for Blender 2.5 that you can use for your finished games.
To use it in your projects, the easiest method would be to append the Preloader scene into your game file. Set the cube’s ‘beginscene’ property in the Preloader scene to the name of the first scene in your game. When you make the runtime, make sure that the Preloader scene first. That’s it.
EDIT: And make sure that the Preloader is using the texture mode that you want to use for the game, as I believe it carries over.
Check it out here.