Nope. He went through doors he shouldn't have by using a trick with that rabbit in the basement (( which is why you need the 16 stars in the first place, to make the rabbit appear )), and for going through the endless stairs early, he used a glitch involving the forward thrust and going backwards, thus going up the stairs before it warps him down.
Btw we still must complete our goal of beating Mario 64.
You need mods to do that. :P
Oh, and I have the console too, I guess...