The agility device is an article of manufacture comprising a base, a stabilized inflatable support disposed on the base, and a top platform positioned on the stabilized inflatable support. The device also has optional handles and expandable base supports for added stability. The device is primarily for use as an exercise device, but also has value as an agility training tool to help users improve their balance and agility, and to improve their reflexes. It is useful for exercise, physical therapy, and for entertainment.