Video keynote to kick off the 2013 Global Game Jam. globalgamejam.org
Filmed by Dave Cerf.
Edited by Dave Cerf and Bret Victor.
Music by Bret Victor.
In the spirit of the game jam, all the games in the video were made in less than 48 hours altogether. You can download them for Mac at worrydream.com/GlobalGameJam2013.zip