Mario & Luigi: Partners in Time ^{(Nintendo DS)}

Hint: Wack-O Elast-O

While fighting Elasto Piranahs, always attack from the top where it's vulnerable. Attacking from the side will only do one point of damage.

Hint: Fighting The Giant Pirahna

When you get to the bottom of the Koopaseum, make sure to load up on a lot of fire brother items in the secret shop. Use the move where Mario shoots out water on the flames then use his hammer on the crack on the wall to enter the secret shop. After you get to the Giant Pirahna, use the fire brother items on it and it'll do about 50 to 90 damage.

Hint: Fight The Shroob

Increase your party to 30 or more and requisition the following items: trampolines and copy flowers. When the boss is inside the globe, use the trampoline to destroy it and use copy flowers to help do damage. If you can inflict over 800 damage per character for a few turns, the boss will be defeated easily.

Hint: Giant Caterpillar Tip

When trying to defeat this catepiller, don't hit him when he is red. Hit the mushroom to put the grey poison mushroom in his drink. When he turns green, you can attack. Be careful of putting in red mushroom as it recharges the catepiller.

Hint: Yoshi Boss

Against the boss in the giant Yoshi, attack each of the eggs until you free all the Yoshi. Use the Bros. move on the boss when it is knocked down to do the damage you need to defeat it.