What happens if the moon falls in majoras mask?

*WARNING: MAJOR SPOILER!* Okay, so, if you must know before you complete the game, what happens is that when you play the Oath to Order after completing the four Temples, the Four Giants appear and push the moon. This stops it. As Tatl and Tael are reunited, the Skull Kid drops to the floor while Majora's Mask is hovering in the air. The moon sucks it in through its mouth along with Link and the fairies. You then regain control of Link, but for some odd reason, you're in a field which appears to be inside the moon! Run up to the tree in the center, and you will find a kid sitting by it. Only speak to him if you have less than twenty masks. If not, you can finally get the Fierce Deity's Mask! To do this, speak to each of the four kids wearing a Boss Mask and complete their challenges. They will ask for masks, though, which is why you need at least twenty. TIP: DO NOT GIVE AWAY YOUR DEKU, GORON OR ZORA MASKS UNTIL LAST IF POSSIBLE. Anyway, challenges completed, you need to speak to the kid wearing Majora's Mask and he will give you the Feirce Deity's Mask and intiate the Final Battle. Once Majora's Mask is beaten, a cutscene will appear showing the results of your good deed. =D Once the infinite 'THE END' sign appears, you are safe to reset your game and use the Mask in Boss Battles. (ONLY, unfortunately.) For details on how to do anything in the game, go to http://guidesarchive.ign.com/guides/1933/