Earthbound

Faster music:
Repeatedly tap Select for faster music.
Information in this section was contributed by D114567m.

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.
Information in this section was contributed by Matthew Schultz.

Find the hole in the ground in the maze of tunnels under Tenda Village. Use it to drop down to a small cavern with a black talking rock and a butterfly. The rock will say similar to "You're in the Earth's belly button". Get the butterfly, then walk just far enough out of that room so the rock is no longer visible. Walk back in and the butterfly will re-appear. Keep collecting the butterflies as needed for full HP and HPP.
Information in this section was contributed by Dan Silverman.

Hint: Unlimited attributes for any character:
Once you collect a Rock Candy, save it. Buy or collect as much of the Tin Of Cocoa Condiment as possible. Get in a battle having both the Rock Candy and Condiment in one character's inventory. When used in battle, the Condiment will be spent instead of the Rock Candy, giving you as much of an attribute as needed. This is very useful for increasing Jeff's IQ or Ness' Guts. Note: Save the game before using it in case of a mistake.
Information in this section was contributed by Gage Evans.

Hint: Easy money:
Use this technique to to increase your money early in the game. After reaching Twoson, there is a booth at Berlin Park (the flea market place) that sells fresh eggs. Buy as many fresh eggs as possible. Go to the Twoson shopping mall and wait. Give each egg three minutes or so to grow and hatch. Sell the chickens at a profit of $98 per egg. Note: Do not try to "Use" the chicken or it will run away.
Information in this section was contributed by Jesse Smith.

Go to Happy Happy village, and find the stand where you can buy fresh eggs or bananas for free. Buy as many eggs as possible, wait for them to become chickens, sell them to the man at the drug store for $110 each.
Information in this section was contributed by James Raymond.

There is a man sitting at a table on the left side inside the Hotel in Twoson . Talk to him ten to twenty times and he will give you some extra money.
Information in this section was contributed by pjmoss.

Talk to the man in the Twoson Hotel sitting at the table outside your room. He will keep saying different things like, "It's so hot out today", followed by, "Is it cold today?". Keep talking to him until he finally says "Here, go buy yourself a juice or something".
Information in this section was contributed by VileX13.

After you defeat Master Belch, go back to Threed and enter the hospital. Go to the room with no one in it and walk over to the night stand. Press R or check and you will find an insignificant item. You can sell this for $1 at a store and $25 at the Happy Happy village store. Note: This item actually has another use in the game. Travel to Twoson and enter the hospital. There is a man there that will take the item and give you a Magic Truffle in return.
Information in this section was contributed by Justaysam3 and Will Melton.

Go to the tunnel that takes you to the desert. When walking near the end of the road, you will see a sign that says "Desert". Go up and you will find a present containing $1000.
Information in this section was contributed by StarTrekKid2378.

Go to the bridge with the ghosts in it. When you get to the outside, hold Right (with a rubber band or tape) so you move into the bridge. The ghosts will make you come back out where you started. This will go on indefinitely. When you call Dad he will have deposited lots of money in your account. The amount he deposits depends on how many steps you take.
Information in this section was contributed by KoRnFaN32.

If you kill a lot of enemies, go to the ATM machine. Your dad will have deposited extra money depending on the experience you received for the monster (for example, when you defeat someone guarding the "your sanctuary" places).
Information in this section was contributed by Billy_Bob.

Hint: Easy experience:
After reaching the desert, there will be a single tree above the first Pyramid. Run around the desert for a while, then return to the tree. Eventually, a creature that resembles a red caterpillar will appear, running around very fast. Catch it and repeat (you can keep four alive) to get about 20,000 experience each. This may be repeated as needed.
Information in this section was contributed by Meteo.

In the part where you reach the desert after Treed, go into the open. Rarely, a green caterpillar runs around but does not seem to have any interest to fight. Instead, it will run away. Keep following it and do not go any other way or it will disappear. He will end up being trapped from escaping you. You can get it from behind. When you get to him, you will win with an automatic death. You will get over 10,000 experience points. If you have Poo, it will be worth over 7,000 experience points.
Information in this section was contributed by Harmlessbronxite.

Before defeating Master Belch, there are small red berry-like animals. They die easily and give great experience. When you first find them, defeat them, go down the ladder, defeat the other ones, then go slightly to the left, down the ladder, defeat those, and repeat. When you reach level 45, you will be ready to beat Master Belch.
Information in this section was contributed by Utilefreakster.

Once you get enough experience points, your enemies will try to avoid you. Go up to them and your screen will turn green. You will then hear the sound of an explosion sound and get the experience points. Note: This does not work on Bosses.
Information in this section was contributed by ARtiCIN2001.

In the cave that leads to Giant Step and the underground cave at the Tenda Village, there will be small enemies that have round heads and two legs running around. They normally attack in numbers ranging from one to ten (usually six). Take them on in a battle. Their PSI attacks hardly ever hit, and their damage is weak. Also, they give you a large amount of experience points.
Information in this section was contributed by Amoeba.

Hint: Getting the four ultimate/legendary weapons:
Complete the indicated task to get the corresponding weapon.
Information in this section was contributed by blackmage5072.

The Gutsy Bat: Obtained from Bionic Krakens in the Cave of the Past (1/128 chance).

The Magic Fry Pan: Obtained from Chompasaurs in the Lost Underworld. Note: The Holy Fry Pan is actually stronger, but this is the rare weapon for Paula (1/128 chance).

The Baddest Gaia Beam: Can be repaired from the Broken Antenna, which can be obtained from the Uncontrollable Sphere in the Lumine Hole. Note: You may want to spy on this enemy, since it explodes after you kill it. It requires either 65 or 75 IQ to repair (1/128 chance).

The Sword of Kings: Obtained from the Starman Super in the Stonehenge Cave. Note: An easier way to do this is to go into the room before you see the captured hostages before Starman DX. You can possibly fight two Starman Supers at once. Also, approach them from their sides or the front to get a first attack (1/128 chance).

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.
Information in this section was contributed by Jared Martens,

Hint: Finding the Death Ray:
The Death Ray for Jeff is located in the Tenda village in the junk yard.
Information in this section was contributed by Jared Martens.

Hint: Casey Bat:
When you get the Casey Bat, do not use it. It is a powerful bat, but normally has a horrible accuracy with a one in four chance of hitting anything.
Information in this section was contributed by Threefiddy350.

When you have the Casey Bat, do not use it. Get into a battle and go to "Goods". Select the Casey Bat and it will always hit.
Information in this section was contributed by TheDeepEvilOne.

Hint: Finding the Broken Antenna:
The parabolic antenna can be obtained from a Uncontrollable Sphere in the area between the Tenda Village and the Lost Underworld. The Uncontrollable Sphere does explode, so enter prepared for a lot of fights.
Information in this section was contributed by Roy Wristen.

The Broken Antenna can be found by defeating a monster called the Uncontrollable sphere in the Lumine hall before the underground part of the game.
Information in this section was contributed by Jennifer Irick.

Hint: Fast pizza:
To get your pizza within seconds instead of waiting ten to twenty minutes, make sure you have enough money in hand for however many pizzas you want. Make the call to the Mach pizza and place your order. Then, give Dad a call and save the game. Turn the SNES off, then back on. Load your game and the pizza man should come running up within a few seconds. This can be done as many time as needed, and is helpful before exploring a dungeon.
Information in this section was contributed by ReVeLaTeD.

Hint: Defeating Belch:
After you get to the swamp, you will see an army man who will sell you multi-bottle rockets. Buy some, as they are very useful. When fighting Master Belch in this area, have Jeff use the multi-bottle rockets to kill Belch in one turn.
Information in this section was contributed by Garycb52.

Hint: Defeating Giygas:
At all costs, you must keep Paula alive. After you fight him the second time, keep having Paula Pray. Keep doing this the entire time and Giygas will be destroyed.
Information in this section was contributed by thperki.

Hint: Defeating Pokey:
Fire two or three multi-bottle rockets. He will go down very quickly. Also, have Paula cast her Psychic Shield on everyone (not Psychic Power Shield) to make all of Giygas's spells disappear instead of reflecting them back at him, thus making it reflect back to you.
Information in this section was contributed by blackmage5072.

Hint: Defeating Bosses:
When going against a Boss, use Paralysis on him, then attack him normally until he dies.
Information in this section was contributed by Coolcat912.

Hint: Avoid enemies:
When you first see an enemy/enemies, stand still. If it/they do not chase after you, walk until the enemy is about two or three inches off screen, then return to the same location. They enemies could be gone, multiply, or still be there. Repeat this trick until you get the desired amount of enemies. Note: This does not work on Bosses.
Information in this section was contributed by Threefiddy350.

Hint: Free hints from the hint men:
Call your dad on the phone and save the game. Go to the hint man and pay the fee for your hint. After you have the hint, turn off the game. When you resume, you will be at the save before you paid for the hint, thus saving your money.
Information in this section was contributed by ahendon.

Hint: Ness: Best equipment (weapon/head/body/arm/other):
Information in this section was contributed by nick woodward.

Gusty Bat (Offense +100, 1/16 error rate, Guts +127). Fight Krakens in Magicant; 1/128 chance to obtain.
Hard Hat (Defense +15)
Star Pendant (Defense +30, protects against fire/freeze/flash/paralysis)
Goddess Band (Defense +80 protects against sleep, Luck +30)
Rabbits Foot (Defense +3, Speed +40, protects against paralysis)

Hint: Paula: Best equipment (weapon/head/body/arm/other):
Information in this section was contributed by nick woodward.

Holy Fry Pan (Offense +80, 1/16 error rate, Guts +10). Found at the Lost Underworld Tenda Village Shop. Costs 3,480.
Hard Hat (Defense +15)
Sea Pendant (Defense +20, protection against fire/freeze/flash)
Diamond Band (Defense +50)
Saturn Ribbon (Defense +90, Luck +40). Only used by Paula.

Hint: Jeff: Best equipment (weapon/head/body/arm/other):
Information in this section was contributed by nick woodward.

Gaia Beam (Offense +125, 0 error rate). Repair the Broken Antenna (found by fighting Uncontrollable Spheres in Lumine Hall)
Hard Hat (Defense +15)
Rain Pendant (Defense +15, protects against freeze)
Diamond Band (Defense +50)
Souvenir Coin (Defense +80, Luck +35)

Hint: Poo: Best equipment (weapon/head/body/arm/other):
Information in this section was contributed by nick woodward.

Sword of Kings (Offense +30). Found by fighting Starman Super (1/128 chance). Poo's only weapon.
Diadem of Kings (Defense +20, Luck +30, weakens PSI attacks against Poo). Can only be used by Poo. Poo's only helmet.
Cloak of Kings (Defense +20, Speed +40). Can Only be used by Poo. Poo's only armor.
Bracer of Kings (Defense +30, Luck +35, protects against sleep). Can Only be used by Poo.
Shiny Coin (Defense +70, Luck +30)