I started helping with this project towards the end of its development cycle. They didn't need any additional programmers to write code to finish the game, but they did need testers to find bugs and report them. I started doing so, but then offered to be a debugger. My goal as a debugger was to view the code, locate the source of the bugs that were reported, and then report to the programmer why the bug existed and possible fixes. I proceeded with this approach until the game launched.