Final answer:
The details provided do not specify an actual game played by Danny and Molly, and seem to relate to an interpretation of a surreal artwork by Dorothea Tanning. Without additional context, it's not possible to accurately describe a literal game they play.
Step-by-step explanation:
The question about the game that Danny and Molly play in her room appears to be referencing content from a narrative rather than a factual description of a specific game. Without context from a specific book, film, or artwork, it's not possible to provide an accurate answer to what game they play. The provided reference to Eine Kleine Nachtmusik by Dorothea Tanning suggests an element of surrealism and emphasizes themes of mystery and the unknown, which can metaphorically represent a 'game' of exploring new dimensions or delving deeper into the unconscious mind. However, this is an interpretation based on the artwork rather than a description of a literal game.