TL;DR: Launch the game with remote debugging set, then correlate things you find in the game's source files with instantiated things from heap snapshots and throughout the application (local/session storage, etc.). Also, I demonstrate how to set breakpoints on methods to view local variables and other interesting functions residing on the call stack -- then setting a BP on those so as to effectively trace your way back to areas of interest.
There's a lot more that I comprehensively walk the viewer through, so I hope you enjoy and walk away having learned something! =)