While debugging is an essential skill in programming, few CS curricula teach it. "Hello, Muzu" is a chatbot embedded in the Scratch programming environment that helps students develop a process and strategies for getting unstuck. Muzu walks students through the process of isolating and correcting bugs, by using a series of strategies, such as adding “say” blocks to their code, or clicking on individual blocks. Muzu also helps students reframe their mindset towards challenges. Rather than viewing them as barriers, students learn to see their problems as new learning opportunities.