Halo, level 7 ('The Library') on Normal. This shows how to get the Monitor to descend low at the third floor's first door (see my article 'Low Monitor' for detailed coverage of the phenomenon). There's some set-up work leading up to getting a handy checkpoint for making attempts, then I show some plays from the checkpoint.<br /><br />For full details and written commentary see here at my site: <a href="http://www.badcyborg.net/Halo/Movies/BCM74.html" target="_blank" rel="nofollow">http://www.badcyborg.net/Halo/Movies/BCM74.html</a>