Mario & Luigi: Superstar Saga

There is a shop in Beanbean town that makes you pay 100 coins for information for where to go next. Instead of "wasting" 100 coins. Go save somewhere and pay him 100 coins. He'll tell you what you have to do/where to go next, then just shut the game off and do what he told you to do.

This isn't really a cheat but it works. Keep on attacking until he goes into his shell when he does have mario attack with his fire hand attack. His decorations will catch fire and he will come out of his shell.Continue this process to win.(This is the easiest way to beat him otherwise wile he is in his shell you will cause 1 or 2 damage and he will heal about twenty.)

Whenever Hermie hides in his shell, he will heal somewhere around 11-17 HP after two attacks. To prevent this, use Mario's hand power when Hermie starts hiding. You'll burn his decorations, and he come out mad. The more you scare him out of his shell, the more HP not wasted, which adds up to faster defeat.

When the fight begins, start by making Mario jump on her right arm. Her arms are her weak spot. Meanwhile, have Luigi pulverize her with his hammer so that she gets knocked back. Do not let her get too close. After your turn is over, Queen Bean will start sending shockwaves your way. Dodge them and repeat. After her right arm shrinks (usually requires six hits), go for the left arm. Her shockwaves will be weaker, but faster. After her left arm is toasted, her crown will fall off. At this point, she will start shooting lima beans at you. Barrage her with jump attacks, and when her arms get their strength back and her crown is back on her head, repeat the process to defeat her.

Just simply knock out the hammers Bowser throws at you. If you attack Bowser the Shadow Thief will steal your mushrooms and heal Bowser. The Shadow Thief can steal mushrooms and heal Bowser over 50. Knock out the Shadow Thief and then Bowser. Try to have at least 13 mushrooms before the fight.

At the skeleton ship, when you play the barrel mini-game, the skeleton is actually in a form of Donkey Kong.

Sometimes it is hard to dodge a monster's attack because you pressed the wrong button. If this keeps happening, try pressing A + B.

Hee Beans are easy to get when you know where to find them. You can get them in the following places. Note: These mini-games only work after the first time you play them.
Stadust Fields: The Border Guard game
HooHoo Mountain: The Minecart game
Little Fungitown: The two games in the GameArcade.

Note: You will not get poisoned again.

This trick should work after the Chucklehut Brothers teach Mario and Luigi their hammer techniques. Have Luigi use his hammer to shrink Mario.. Then, perform their "high jump technique", but have mini Mario jump at Luigi before Luigi can land on Mario. You will gain one coin. Repeat this to get as many coins as desired. Note: This was done after getting to the university section of the game. Note: Hitting Luigi for one coin will lower Luigi's HP by one point. He will only "yelp" when his HP reaches 1. However, you can still spend some of the bonus stats that you get at level up on the "Stach" stat (which discounts the items in the shops) and buy mushrooms at the castle town and recycle (i.e. use the "Easy money" trick then buy mushrooms to heal him and gradually generate money).

You can get Woo Beans by defeating enemies west of Beanbean Castle.