Princess Peach has explosive vocabulary from the earlier attack, so Bowser requests (as does the Toadstool retainers that they recover the voice from Beanbean Kingdom. Head right in town to find a Mushroom, and then offer it back to the Toad to get a Super Mushroom. Go right to climb the hedge to find a Mushroom in a block, then a 1-Up Mushroom can be gained by speaking to the fellow on the hedge (go south of him to find the way up) and then go south to the bottom of the ledge and examine it, followed by returning to him. Now leap out to the right to get the Mushroom from the block. When you are ready, go talk to Luigi and head to the next screen to find the first save block.
Gain a Suitcase from the elder Toad as well as 100 Coins before heading to the Koopa Cruiser where Luigi ends up on board against his will! Save once you are on board and then head above decks to get some good advice, a picture for your passport, and a couple Mushrooms, followed by a fight with a couple Goombas for some experience in duo Mario Brother fighting. Save once more before speaking to the crane operator to get Luigi above decks the hard way (at least he gets a cool job!). The Cruiser will catch up to the Great Cackletta who quickly sends her minion Fawful into fight!
Use the color of the attack name to determine which brother is under attack (the longer name means she will attack the brother of that color first and then the other one) as well as the techniques you learned on the ship to end the fight quickly. However, Fawful is sore and uses her headgear to destroy the Koopa Cruiser! After Mario and Luigi land as "meteorites", they will be in the Beanbean Borderland.
The Hammer Brothers are security on the Mushroom side of the border and they require some proof that Mario and Luigi can handle the trip they wish to do, so they challenge them to jump the border line enough times before one of the brothers messes up three times. The Hammer Brothers also award a Beanbean Map to the Brothers before they set off to jump the defense spikes that block their way to a couple Mushrooms. Continue through the area with the Fighter Flies to find a save spot, and then Bowser will be found in a nearby cannon. To free him, the Mario Brothers offer all of their Coins, but that is not enough, so the Brothers must go out to the Stardust Fields to get 100 more.
To gain the 100 Coins, simply fight enemies and check out boxes. However, be sure to climb the sandbag hill to find the Starshade Brothers, who will teach Mario and Luigi Bros. Action secrets like the High Jump and the Spin Jump . Now grab their flag to prove your worth,and use the techniques to get a Mushroom and the respect of the Starshade Brothers. Now continue on your Coin hunt using your new techniques to reach areas you previously could not. When you find the Starshade Brothers again, learn how to perform Bros. Actions in battle. Once you have enough, return to Tolstar and he will go back on the deal before attacking .
Try out the Bros. Actions to inflict massive damage, remembering to watch and jump the thrown spiked balls from Tolstar. When he says "Neyck", stand still to dodge the bouncing spiked ball. Get 30 Experience each and a 1-Up Mushroom for winning this bout.
After some false allegations, visit Hoohoo Village, and then take the lower route to find Fawful beating a guard! She will then block your path, so return the way you came and take the high route to the next area and enter the hut to meet the Hammerhead Brothers. They promise to make Hammers, but they need Hoohoo Blocks. After leaving the area, return to cross the repaired bridge to go to Hoohoo Mountain!
Use your skills here to traverse the terrain and collect the treasures from the boxes, including walking to the left off of this spot to find an elusive box with a syrup inside. The second area requires the brothers to use the Spin Jump to reach the whirlwind, at which point they can power themselves up to go right to the far ledge thanks to the extra distance. Go up and to the right to find a watering hole to put out a fire nearby to reveal a whirlwind that can be used to cross the large gap to the left. The next area has another watering hole to fill Mario up at to put out a fire to make a whirlwind, but got to the next screen to repeat the procedure with the water from the same watering hole once again. Now go back and whirl across the big gaps with these two whirlwinds .
