Earthbound

Hint: Finding Ego Orb:
Search in the lost underworld near the fire spring. You may
have to do a lot of walking to locate him.

Hint: Finding the broken antenna:
It is located in the Tenda village in the junk yard.

Hint: Unlimited magic butterflies:
Go to the cave in Onett and find the location where you can see
the giant step but cannot get to it. Keep entering and exiting
this location, heal yourself, then get more butterflies as needed.