This is the Lego Toy Story Set 7591, Construct-a-Zurg, Special Edition.
Now you can build Buzz Lightyear's arch-nemesis, the Evil Emperor Zurg! With his powerful sphere-shooting cannon and rotating waist, this poseable galactic overlord is more than ready to battle Buzz and his little green alien friend the next time they meet. Includes alien minifigure! Powerful sphere-shooting cannon Emperor Zurg features a rotating waist Measures 9" (23cm) tall Award Winner: Oppenheim Toy Portfolio's Gold Seal