Mario & Luigi: Superstar Saga Cheats (GameBoy Advance)

Hint: Mushrooms And Infinite Coins 

When you first reach Hoohoo mountain, this little trick is really handy. After you get
through the next cave you will reach a fountain. Use it to fill Mario and spray water at
a fan contraption that is off a small bridge nearby (have Luigi jump on Mario to spray).
It will give you a coin if you spray the fan part. It takes some patience, but if you
keep doing it the machine will start to give mushrooms as well as coins. It will give you
an amazing 11 mushrooms before it starts to only dispense coins (there's no limit to the
coins, so spray away). 

Hint: Spiked Item Mania 

When you earn the spike badge, you can jump on the enemies in the adventure field for
free items, XP and other junk. If your level is high enough, you should be able to kill
them instantly for fast cash. 

If you equip the Gameboy Horror SP, you'll get even better items! 

Hint: Unlimited Hee Beans 

Once you make it to Little FungiTown, (after you face the big rock boss) you can enter
the gaming arcade, which is in the eastern part of town. Go up to the top of the stairs
in the arcade. Beat the high score of the game on the right, which I believe is 200. You
will win an invincishroom. Mario will eat it and become sick with the bean fever. The
curing plant is found in the Guffahaw ruins. After Mario is healed, you can go back to
the arcade. Play the same game again and every time you get a nice score (which is easy)
you will get up to 9 hee beans. Do this until you have 99 beans, go to the beanery, and
make yourself some drinks!

This is a little trick I discovered to get infinite coins: 

1. Make Mario go in front of Luigi. 

2. Choose the hammer for Luigi. 

3. After you hit Mario with the hammer, for Luigi, choose the high jump. 

4. Use the high jump, but before Luigi lands on Mario's head make Mario jump. 

5. This makes a coin pop out from Luigi. 

6. You can do this as long as you want but doing this will decrease the health of Luigi,
so keep some mushrooms handy.

Every time you make a new beverage in Starbeans Cafe, Professer E. Gadd (last seen in
Luigi's Mansion for GC) comes and samples the drink. Afterwards he gives you a special
item.



Drink 1: Greed Wallet (doubles the coins you get in battles) 

Drink 2: Bonus Ring (doubles EXP if taken no damage) 

Drink 3: Excite Spring (floating defensive jump) 

Drink 4: Great Force (doubles the damage you give and receive) 
Drink 5: Power
Grip (don't lose hammer in defense)

Drink 6: Cobalt Necktie (doubles your 'stace points) 

Drink 7: Game Boy SP Horror (get rare items easier after battles)