What about an minority report type detective game, you can see the murders or crimes taking place then you got to put the clues together and find when / where it happens. essentially free-roaming would be ideal but have no idea how that can work with natal. But would be spiffy to be able to pick everything up and use it like you essentially use it in real world.

You get what im saying?

Fuzion Frenzy 3

Probably the only game that Microsoft could make which would make be consider buying Natal at its launch. If not Im waiting until a decent looking game comes out. Dont know how many people here have played the original Fuzion Frenzy on the Xbox but IMO would be a perfect launch title for it if they choose the right mini-games

I think they should just make a Natal Fit.

Id really like some kind of virtual "Personal Trainer". Natal should be able to detect dumbbells, a skipping rope, or whatever you want to mess with and integrate it into your Training routine.
Also it could easily measure your progress, eg how many sit ups / push ups / .... you can do etc and kinda motivate you to do more by giving some feedback.

IMO such a game would probably sell as well as wii fit if it's well done and ms could attract some more casuals.

You're in the porn movies.

I haven't put much thought into it, but it would make for a great local co-op experience.

Premise

This is a competitive game where players compete to complete different tasks.  The task will involve a variety of different objectives, get the ball in the goal, clean up the area, destroy targets, etc.  The only way players can complete tasks is by contructing tools to do the objectives by themselves.  Players are assigned a set of pieces that are used to construct the tools: wheels, axles, scoops, arms, guns, wings, jet packs, etc.  Much like creating lego objects.  The viewpoint will be a 3D overhead view.

General Gameplay

This is a hands only Natal game.  Players can manipulate the pieces via picking them up, rotating them, and snapping them into place.  Matches are timed, each player has the same set of pieces assigned to them, and the player with the most objectives completed by the time limit, wins.  As the match progresses, better pieces can be gained by completing certain tertiary objectives.  These objectives do not count towards the win, but the powerful pieces gained from them, could make the rest of the objectives easier to complete.  Offensive objectives can also be completed that will hinder the opposing players progress.  Players will need to decide whether to go straight for the main objectives, try and get the more powerful pieces, or try and hinder the opponent.

Tools will have a limited set of AI settings: move these things here, shoot this here, etc.  This keeps it more simplified than most custom tool builder games(Banjo N&B, etc).  It needs to be simplified because this will be an RTS of sorts where the player might need to make 3 tools to get the balls in the goal, and 3 tools to shoot various targets, and 3 defenders.  So once the match starts, players are using their hands to create as many(and of the highest quality) tools as they can to complete the objectives.  More pieces are provided to the player as the match progress and certain objectives are completed.

Players can destroy the opposing players tools via creating destructive tools of their own.  This does not count towards the win.  In order to combat this, defensive tools will need to be constructed.  Aka, patrolling tools, or turret tools.  The player will need to decide on the number of defensive, offensive, and objective oriented tools that they need to create.

The environments and objectives can be randomly generated so that no two games are alike.

Matches can be between 1 - 4 players(AI or human) via the same screen or Live.

oO I have that Lemmings game on my PS2, but the interface was bothersome.

What I'm trying to say is that the idea is fun in theory, but for it to work one will first need to invent an intuitive interface.

Yep, a body/voice interface for that type of game would be great IMO.

Yup, the only real problem is for when Natal should register ones hands and when it shouldn't, I kept squashing the lemmings when I needed to move my hand fast over to another lemming in peril.

Trailer for the EyeToy Lemmings:

http://www.gamespot.com/ps2/puzzle/lemmings/index.html

EDIT: the Eye part is from0:35 to 0:53.

Too bad I couldn't find a gameplay video, because it would show the hurdles which needs to be overcome for the game to be fun.

That is were depth can come in.  Pull your hands back away from the creatures if you do not want to interact with them.

This isn't necessarily an original game idea but just a comment on a genre. If natal is implemented in rts' then finally we may have controls that rival or are better than the pc mouse and keyboard. I for one would love to play some red alert with hands free motion controls.