Defeat the Great Devourer in the epic battle between good versus evil.  The Great Devourer has been awakened and threatens to devour the world of Ninjago. Can the legendary green ninja, riding the awesome 4-headed Ultra Dragon, overpower this evil adversary? Can Lord Garmadon harness the power of the 4 golden weapons of Spinjitzu to destroy the mighty snake and what about Sensei Wu? Can Jay defeat the evil snake Generals Acidicus, Skalidor and snake soldier Chokun to release his master from the impenetrable snake prison? Includes 7 minifigures: Lloyd ZX, Jay ZX, Sensei Wu, Lord Garmadon, Acidicus, Skalidor and Chokun. Set features 4-headed Ultra Dragon, The Great Devourer, snake prison, Hypnobrai fang blade with blue anti-venom capsule, 4 golden weapons and 7 regular weapons.
— As of 07/16/2012 this product had 4.4 out of 5 stars from 5 reviews on Amazon.com. Pros: Very large set with many pieces; dragon's jaw can open and close. Cons: One user said that when they tried to play with the product after it was built, the blocks fell apart.