354487
It has an estimated revenue per month of between sixty two and eighty four million US Dollar s. The game is split-screen , with a role-playing game at the top where you get to fight dragon s and other monster s. The lower part of the screen is a puzzle game involving gems .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None