Discovering the glitch required re-programming the game while playing the game. They use a "debugger" to look at what address the computer jumped to by using an emulator on a PC. While doing all those random tasks in the game, he essentially manipulated the memory to take him to the credits screen. Because this was performed on a legitimate SNES and was taken to the credits, it's an official time of under 5 minutes and a new world record.