I just finished ALTTP just a few minutes ago and now I am so confused. I tried to do a 100% run of the game but I didn't manage it, but one thing I did manage was get all of the sword upgrades. I got the two sword upgrades into the Golden Sword and it made most of the enemies in the game really easy to fight, but as I watched the ending cutscene something really confused me, well I say confused but I mean I found it really dumb. When Link puts the Master Sword to rest it has returned to its normal appearance. I know that Nintendo made it return to normal because they wouldn't want to replace the Master Sword, but it just made me wonder, why would they let you upgrade the sword if they were just going to return it back to normal at the end of the game? Nintendo logic I guess.