You call for help. You ask for a refund and return the product. You'd have been better off throwing the game away. Even for defects that they know about and choose not to tell the customer about. Many software developers believe that this rule threatens the professionalism of their work.
Similar opposition comes from quality control professionals.
Suppose that a software company demonstrates a product at a trade show. You order the product at the show. The product you receive has different screens, is harder to use and less capable. Today, when a software company demonstrates a product, it creates a warranty that the product you get will be the same, work the same, and have the same capabilities as the one demonstrated. But it doesn't.