One of my favorite joys of April was always the arrival of Morrel Mushrooms towards the end of the month. From the 25-30 of April in Motherworld, Mushrooms will also be out! The mushrooms will be in random places a little bit of the normal path of travel. By pressing space over one, you can eat it and instantly recover 25 HP.
But don't eat too many...
If you eat 3 or more mushrooms, a mushroom spore will grow from your head! In Earthbound this would happen when a Ramblin' Evil Mushroom "Spread some spores."
Your walking controls will all be backwards where up is down and so on. Fortunately, if you walk inside a building you'll recover from your funky feeling.