Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey

Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey (known as Mario & Luigi RPG3 DX in Japan) is a game for the Nintendo 3DS, released in Japan on December 27, 2018, and set to be in the Americas on January 11, 2019, in Europe on January 25, 2019, and in Australia on January 26, 2019. It was announced in a Nintendo Direct on March 8, 2018. The game is an enhanced remake of the 2009 Nintendo DS game Mario & Luigi: Bowser's Inside Story. The remake also features another story where Bowser Jr. takes action on an adventure, similar to Minion Quest: The Search for Bowser, with two important differences shown so far: a slot for an additional First Officer who will have its own actions just like Bowser Jr. as well as formations for the troops.

The game is now amiibo compatible. Scanning one will grant the player an item.

Gameplay changes

 * Like in Mario & Luigi: Dream Team, players can choose whether they are right or left handed, altering the position the 3DS needs to be in during giant boss battles.
 * The number of hits of the Green Shell Special Attacks for the Bros. has been reduced from ten hits to six hits, and the finishing attack is similar to the 3D Red Shell and 3D Green Shell from Mario & Luigi: Dream Team and the 3D Red Shell from Mario & Luigi: Paper Jam.
 * Yoo Who Cannons now aim at the enemy while the attack is in use.
 * The Battle Guide now takes the form of a Command Block for both the Bros. and Bowser during battles.
 * Super Bowser has a new attack during giant battles, "Spinning Slide", which involves drawing a circle with the stylus.
 * The button can now be used to fast-forward cutscenes.
 * Special Attacks now cost different amounts of SP.
 * The Green Shell Special Attack now costs 4 SP instead of 3.
 * The Fire Flower Special Attack now costs 6 SP instead of 4.
 * The Jump Helmet Special Attack now costs 10 SP instead of 6.
 * The Yoo Who Cannon Special Attack now costs 14 SP instead of 7.
 * The Super Bouncer Special Attack now costs 12 SP instead of 7.
 * Magic Window has been nerfed and no longer uses infinite inputs; the attack now ends with three windows on both sides opening one by one, with both bros jumping out of them to stomp on the enemy.
 * The "Easy" mode for Special Attacks returns from Mario & Luigi: Superstar Saga + Bowser's Minions.
 * Rank-Up Bonuses return from Mario & Luigi: Dream Team and Mario & Luigi: Paper Jam.
 * The Boomerang Rank from Mario & Luigi: Paper Jam returns for Mario and Luigi.
 * There is now an additional fifth rank for Bowser.
 * Scratch Cards are now played by choosing a square with the and buttons.
 * Star Candy returns from Mario & Luigi: Dream Team.
 * Bowser now eats Cheese instead of Syrup Jars to restore SP.
 * Bowser now must attack enemies to make them drop Blitties so he can inhale them.
 * Experience Points are no longer received from Giant Battles.

Visual changes

 * Enemy levels are now visible.
 * The screen shakes whenever Bowser moves in the overworld.
 * The area with the Sea Pipe Statue now has a Blooper-shaped stone on the ground.
 * After finishing the Goomba Storm Special Attack for Bowser, he will raise his left hand to look up at the Goombas as they fall.
 * When the water fills in Pump Works, the Bros. will slightly float and sink back down.
 * After finishing the Fire Flower Special Attack, Mario will clean his hands, spin around and tip his hat, while Luigi spins around and does a finger gun motion.
 * The sprouts on the Leaf Guys's heads now flutter instead of spinning around like a propeller.
 * Luigi now balances on the Super Bouncer ball when performing the Special Attack. He also bounces off of the enemy before kicking the ball down at them when the attack is performed successfully.
 * The meteor in the Mighty Meteor Special Attack is now a 3D meteor that lacks the "?" icon. The meteor is similar to the Trio Attack Trio Meteor in Mario & Luigi: Paper Jam. It also explodes into confetti unlike in the original.
 * Bowser now has a whistle during the Bob-omb Blitz Special Attack.
 * The concrete floor and grass outside of Peach's Castle are different and the area has a Fawful face on the ground
 * Bowser shoots fireballs out of his mouth at the Magikoopas during the Magikoopa Mob Special Attack.
 * The Vacuum Block is yellow, rather than green.
 * Bowser will now toss soap on Broggy when he uses Broggy Bonker Special Attack.

Audio changes

 * The boss battle music now plays during Mario's tutorial battle against Bowser instead of the standard battle music.
 * Bowser's footstep sounds have been changed.
 * The Cavi Cape music starts playing when the Bros. enter the Funny Bone instead of the Bowser Path music.
 * After Luigi enlarges during the Snack Basket Special Attack, he will make a low-pitched laugh. When he lands on Mario after this happens, Mario will make an angry sound.
 * The Dark Star and Dark Fawful now have their own battle themes.
 * When the Dark Star Core changes into its true form inside Bowser during the final battle, Fawful does not laugh.
 * The music for the final battle now continues to play after the Dark Star Core is defeated.

Captain

 * Bowser Jr.

First Officer

 * Ludwig von Koopa
 * Morton Koopa Jr.
 * Iggy Koopa
 * Wendy O. Koopa
 * Kamek
 * Lemmy Koopa
 * Larry Koopa
 * Roy Koopa

Troops

 * Fire Bros
 * Ice Bros
 * Mechakoopas
 * Lakitus
 * Spinies
 * Goombas
 * Boos
 * Bomb Boos
 * Big Tail Goomba
 * Goomba Tower
 * Paragoombas
 * Hammer Bros
 * Koopa Troopa
 * Koopa Troopas (Red)
 * Koopa Paratroopas
 * Shy Guys
 * Fly Guys
 * Spear Guys
 * Bandits
 * Tail Boos
 * Horned Ant Troopers
 * Ninjis
 * Buzzy Beetles
 * Spike Tops
 * Fire Stalking Piranha Plants
 * Spikes
 * Para-Biddybuds
 * Chain Chomps
 * Mechakoopas
 * Pokeys
 * Boomerang Bro
 * Bullies
 * Swoops

Bosses

 * King Bob-omb
 * Broque Madame

Troops

 * Hammer Bros
 * Ice Bros
 * Lakitus
 * Spinies
 * Bomb Boos
 * Urchins
 * Bob-ombs
 * Chuboombas
 * Choombas
 * Drillbit Crabs
 * Fly Guys
 * Borps
 * Fawfulcopters
 * Fawflants
 * Oho Jees
 * Toothies
 * Sockops
 * Broozers
 * Chargin' Chucks
 * Mechakoopas
 * Cheep Cheeps
 * Fire Stalking Piranha Plants
 * Treevils
 * Captain Goomba
 * Captain Shy Guy
 * Captain Boo
 * Captain Koopa Troopa
 * Wendy O. Koopa
 * Iggy Koopa
 * Spikes
 * Ninjis
 * Shroobs
 * Goomba Towers
 * Pokeys
 * Swoops
 * Paragoombas
 * Tail Boos
 * Big Tail Goombas
 * Koopa Troopas
 * Horned Ant Troopers
 * Para-Beetles
 * White Magikoopas
 * Koopa Paratroopas
 * Fire Bros
 * Spear Guys
 * Lakitu Kings
 * Big Boos

Nintendo eShop description
''Laugh your way through a hilarious story told from three perspectives! Search the Mushroom Kingdom for a cure as Bowser, explore his innards as the Mario Bros., and discover the untold story of Bowser Jr's Journey. Overcome the fury of Fawful, action-packed battles, puzzling tasks, and giant bosses in a classic action RPG-stuffed with new content! Mario and Luigi are stuck inside Bowser, forced to accomplish unusual tasks to assist their arch nemesis with hero stuff across the land. The scenes and dialogue that ensue will have you cackling like Fawful, even in battle! Time your button presses and keep up with the action: turn the system sideways, blow into the mic, or tap the touch screen. In an all-new mode, Bowser Jr. will cross paths with our unlikely allies as he recruits Ranged, Flying, and Melee troopers to fight for his cause. Strategically form teams and pit them against enemies to reign supreme in frenetic combat.''