Nintendo left symbol maps for the game on the disk, so they likely found the random number generator function within that, which is named cM_rndF. To count invo

Nintendo left symbol maps for the game on the disk, so they likely found the random number generator function within that, which is named cM_rndF. To count invocations, you could patch the game to increment a counter on every RNG call, and try an example speedrun. Or you could do a brute force to find the rough invocation count from the internal state.