As most of you know, the N64 Donkey Kong game had a game breaking bug on the 4 MB memory version. They needed to include the expansion memory just so that bug wouldn't happen.
I can imagine in the age of computers and emulation, we should by now have a pretty decent idea as to why this bug happened. As in, limit ram to 4 MB, see what tries to access outside there and why.
Sadly it probably is hard to figure that out, and I can imagine that at the moment of the development switch to 8 MB, they actually started using more of that ram since it was there anyway.
Does anyone know what exactly, nearly got that game pulled at all?