The live Kinect demonstration saw James and Oliver Phelps--the twins who portray The Weasley Twins in the magical movie series--waving their arms forth to cast offensive spells or holding their hands out to conjure a defensive shield as they zapped enemy wizards in the challenge. Challenge performance is tracked and uploaded to Xbox Live for comparison, EA explained.

Developed by Harry Potter veterans EA Bright Light, Harry Potter and the Deathly Hallows - Part 1 is due out in November for PC, PlayStation 3, Xbox 360, Wii and DS.