There is definitely a sense of achievement, after doing something like that. Plus, the confirmation of an extreme obsession for Zelda! :)
@ illmatic: You're friend did on accident what I was so happy about doing deliberately... Geeze...
The invisible hookshot target over the door didn't take me very long because I used that so many times in my other game that I had that one down. It was the one in the corner that took me so long. For the life of me I couldn't remember where it was! :P The room where you fight the invisible hand...
I feel silly now for using my arrows against Bongo Bongo... without the eye of truth. I just kind of guessed for the middle and shot, then used the goron sword. It took me three tries to kill him though because I lost my fairies in the room before that trying to find the platforms... Even after...
It is most definitely possible... if you've done it before. There's still a ton of guess work involved like throwing bombs to find solid ground, jumping of cliffs until you find the right spot etc. and I probably wouldn't have been able to do it without having played the level before, or, at...