Get The Item Ball From National Park:

you know that annoying item ball in national park thats always leering at you, but you can never actually get to it? heres how:

face the item ball. now push against a part of the fence. is it solid? yes. move on to the next bit of fence. and repeat. the gap in the wall is near the kid holding the gameboy.

that item ball contains paralyse heal. but explore around the fence and in the trees you can find TM28: dig. also, there is a hidden item near the end of the fence, near the south entrance of national park. it is a full heal.

hope that helps!