Ben Sawyer discusses different models for behavior change games. These include: 1) A single tight game focused on one topic. 2) An internal hub and spoke model with a central game connecting to mini-games. 3) A collection of separate mini-games. 4) An external hub and spoke model where a manager game connects separate mini-games. The document emphasizes the importance of choosing the right model and designing effective handoffs between game components to guide behavior change.