Title: Only one complaint
Review: My 5-year-old son loves this program. However, he is frustrated that he cannot enter one area because we don't have the "booster code." How do you get a booster code? You have to buy another product from the same company. It upsets me that the company cannot rely on the fine quality of their products to sell more, but have to resort to ambushing parents with a marketing gimmick that a 5-year-old is too young to understand.
Is this product review negative?