Okay, I was playing with Halo again. I'll never get tired of Halo 1. It just looks and sounds so awesome now.
The Kinect features are very very cool. There are ZERO INSTRUCTIONS FOR KINECT which is kind of sad. Luckily, the game uses controls from Dance Central but it took me awhile to realize this.
As indicated in the video (but not described completely), when you say "analyze" you enter an analyze mode where the screen turns blue. anything that shows up as orange can be scanned. Analyze mode looks cool and looks like the thermal sensors of the Predator. so you point your reticle on the orange object and say "scan". it will then be put into the library for you to browse and read information about the object. You'll be scanning multiple weapons, characters, various types of enemies, ships, vehicles, etc.
When you're at the main menu, you can go into extras and then select Library. Once in the library, you can enable Kinect mode. At which point, you navigate the objects just like Dance Central. you raise your right arm up and down to go up and down the list of items you scanned. Then you swipe across your body to load the object description. you can rotate the object around, scroll text, etc. To get back to the list of scanned objects, you swipe your left hand just like in Dance Central.
Apparently, you can go to the library directly from within the game but I didn't try that.
For the voice commands, they're really cool.
The first benefit is you can change your settings without having to go to the settings page. So if the level is too dark, you can say "brighter" and immediately see the changes. If you want more contrast, you can say "more contrast". If you want to turn off subtitles, you can say "subtitles off". Note that the settings has to be enabled before the cutscene begins so you can't say "subtitles on" once the cutscene has already started an expect to see the subtitles while in mid playback.
Saying "reload" is not useful. mainly because when you are shooting your gun, it won't reload with the voice command. You have to stop shooting for it to reload as far as I can tell.
"Grenade" is also not really useful but it's neat and more responsive than "reload".
Now the useful voice commands are things like "flashlight" and "change weapon". I actually much prefer saying it than pressing Y for changing the weapon. It's very responsive and just as responsive as pressing Y (in contrast to "reload" which has a little lag and the stupid have-to-stop-shooting) in my opinion.
I didn't try commands like "pause" but that seems useful (though I think I'll stick to hitting the start button for that).
The "Analyze" feature is uber cool. Even in the heat of battle, I was turning the feature on and scanning things as I was fighting. It makes it like an adventure game or RPG.