Activity for 250pax that focuses on Making Decisions with Speed

Hi NASAGAns,

Do any of you have any creative ideas/suggestions for indoor activity for 250pax that focuses on the objectives of Make Decisions with Speed and Take Initiative?  I have proposed Balloon Chaos (4 teams using 4 different balloon colors and each team is made up of Blowers, Thrashers, and Stuffers) as well as Building a Future Platform Solution, which involves Design and Building Phase as well as a Purchasing Phase (and all 30 teams are informed 45 minutes into activity that they have to connect all the platforms solutions together to make One Platform Community.

Any ideas are greatly appreciated :-)