Introduction === One of Carnegie Mellon University's most widely attended class is 15-122, Principles of Imperative Computation. 15-122 contains a capstone assignment called the C0 Virtual Machine, which involves implementing a program that allows the user to run arbitrary code in the language in which 15-122 is taught, C0. The implementation of the virtual machine (C0VM) is not an easy task - it involves higher level thinking and a deep understanding of the abstractions associated with running arbitrary code. Because it is difficult, the CDB (C0 Debugger) hopes to improve the learning process by making visualization and interaction with a working implementation of the C0VM more accessible to 15-122 students. This involves creating a working Javascript version of the C0VM, implementing visualizers for relevant parts of the assignment, and developing the interface for student-based interaction with the application. With development time and effort, the CDB has the opportunity to change the future of imperative computation education.