The End

The following is an in-depth guide for the end of Mother 1.

After the cutscene, use the onyx hook to head to Magicant. Go north out of town and all the way north to enter Queen Mary's Castle. Go through the door to the left. Go through the door on the right, then head all the way to the west part of the room and talk to Queen Mary. After the cutscene, you'll be back at the peak of Mount Itoi, so head north through the cave entrance to enter the Mysterious Cave.

Mysterious Cave

♪Alien Investigation♪

Head north and then all the way eat and through the door. Here, you can interact with some characters. Head back outside, then all the way north. Go through the door when you know you are ready to fight Giegue.

HP: ∞ 

PP: 0

OF: 15

DF: 20

FT: 20

FC: 23

SP: 100

ST: 10

WS: 14

At the start of the battle, use PSI Shield Beta or Alpha, also, throughout the battle make sure to use Lifeup Pi. Eventually, Ninten and the rest of the team will be able to use the sing command. Have everyone use it every turn unless you need to heal. Eventually, after all of the singing, Giegue will be defeated, and the world of Mother 1 will be saved.

After Giegue is defeated, the world of Mother 1 is saved and its story comes to an end. When you see the above image, you're done. Congratulations!