Even the SNES is substantially more complicated than the NES. The tooling available to examine the SNES games like NES games are at least pretty similar, but t

Even the SNES is substantially more complicated than the NES. The tooling available to examine the SNES games like NES games are at least pretty similar, but the capability and complexity of the SNES is a huge step up from the NES. The N64 content is a different league though. It's not nearly as easy to understand and follow. Plus, Mario64 is written in C and most of the content I've seen has been people adding features to it (HD upgrades, ray tracing, 60fps, etc).