Mario and Luigi: Bowser's Inside Story -- Part 20: Unleash the Dark Power!

The bros have just entered the Airway, which changes with the temperature of the air. Surfaces may be slippery with ice and the water in some pipes frozen. The first enemies you encounter are Air Cheeps. They'll roll into the bros. When they roll into the bros, repeatedly hit them with the hammer until they are defeated. Go east and have Bowser step away from Midbus. There's a switch on the left wall, which you can't hit while frozen. This makes a bone drop down. Freeze the area and push the bone to the right. Thaw and hit the switch on the right wall. Use the bone that drops down to reach another switch. This will make the pipe to the right accessible. It will take you to a lower part of that area. This leads to another pipe to another area. There's a fire going when the area's thawed. There's a switch on the other side, but first, hit the ! Block above it. This will extinguish the fire. The switch will allow you to go west. East of the room with the fire is a Save Block, but you can't go past it. Go west on the lower path.

Go to the left, past the fire, and go up above it. Hit the ! Block to make water drop into the bone bucket. Freeze the water and hit the bucket from below to knock your ice cube onto the floor. Slide it to the right to reach a switch. This opens small gaps in the floor over the fire. Make another ice cube, push it over the gaps and melt it. Hit the switch to open the path to the left. Hit the Save Block and go through the pipe. The Dark Star is ahead. It eats a piece of Bowser's DNA. Starlow suggests trying to attack it. Make an ice cube and slide it into the Dark Star. Instead of hurting it, the Dark Star grows large arms and punches the ice cube, as well as some walls ahead. It may help to make the floor icy to make the jump.

To the east are a set of blocks riding on tracks. The bros can grab on them when they're thawed and fall off when the blocks freeze. Here you'll find gaseous enemies called Stonks. Go up and to the west. This area has three pipes. The yellow pipes on the sides lead to the top pipe next to the green on. Time your drop to the pipe in the middle of the room from the moving block. The pipe is marked by the coins. In the next area, send Mini Mario out to hit the switch below. It makes a platform appear. There's a switch higher up on the right wall. The third switch is on the left, accessible by the moving block. This makes a platform to the pipe appear. There's a blue pipe to the left and a green pipe to the right. The blue pipe takes you back to the second Save Block. The green pipe leads you to the Dark Star again. It eats another piece of DNA. Hit the switch to knock it into a block, which it destroys by breathing fire. It's starting to act more and more like Bowser. Save and go through the top green pipe.

The yellow pipe leads to the second Save Block. Go to the right and an Emoglobin will approach. He says the flat Emoglobin is a Liftoglobin, which moves when it's cold. Freeze the air and use the stylus to move it. Touch the Liftglobin to make it stop. Both bros are needed to make it move. If you go too far away, it will return to where you found him. You'll find Airnapses here, which act like Napses. Above you, the floor and ceiling are electrified. Hit the ! Block to open a path. Take the Liftoglobin to the pipe in the top right corner.

Across the gap is the Totemglobin. (There's a Liftoglobin below if you fall.) They have a test to allow you to pass through to the pipe behind them. Eight blocks appear in the room and they must be hit in numerical order within the time limit of 50 seconds. Remember the path you have to take to go as fast as possible. I had 15 seconds to spare. The pipe leads to an area with many enemies. A new enemy is an Air Cannon. It fires Bullet Bills that become invisible. Knock them away with a hammer. The Liftoglobin is to the right. Ahead, the path is electrified. Take the path to the left to open the blocked path and go through the green pipe. Go up, over, and down to exit to the west (the pipe is a cannon to a block with Star Candy).

Ahead, the Dark Star briefly suffocates the bros, then takes more DNA. This piece allows it to body slam. Use the pipe as a cannon to reach the ! Block to open a path. Go west. The red pipe leads to the second Save Block. Go west through the green pipe. Freeze the area and go past the green pipe spewing water. Hit the two invisible blocks next to the platform on the right. Drop down into the mucus pool to reach that platform. This will give you access to extra items in the room with the fourth Save Block. Heal and save.

Ahead, the room flashes and changes colors. The Dark Star is ahead and the bros will have to deal with it. It's now or never. Starlow gives them the chance to go back and prepared themselves. Hit the ! Block ahead when you're ready. The Dark Star is sending out sparks everywhere. It splits into four and dissolves. The four pieces reform to form a Dark Star that greatly resembles Bowser, without legs. It tries to inahles the bros and Starlow. It gets Luigi and spits him out. It reforms as the Dark Star again and engages the bros in battle.

At first, the Dark Star is invincible. Do some basic hammer and jump attacks to fill your meter. It will create Dark Satellmites. Attack these when you get the chance. They'll fire beams above and at the bros. When they've been deactivated, the Dark Star will give them a bomb to attack the bros. Just have one bro hit the Dark Satellmite back into the Dark Star to weaken it and you can do damage (after two of them hit it). It will fall to the ground and fire a laser at the bro that initiates an attack. A good attack to deal with the Dark Satellmites without wasting energy on the Dark Star is Snack Baskets. One of the Dark Star's attacks is to split into five or seven and attack the bros. Just before it reaches the bros, each piece will become invisible. If there's another piece behind it, hitting it will knock the piece behind it out of the way. It will also shine a light on the bros to make their shadows appear. They'll circle the Dark Star while it shoots lightning at them. Have the respective bro jump when they're targeted. After a while, it will fire a beam at the bros like how Bowser breathes fire. Starlow will circle the bros to take them to safety. Don't hang up there forever, because it will knock you out of the sky. When it's defeated (for me, after three Falling Stars), it will start spinning and the bros will start running away. Press both (A) and (B) repeatedly. It will then explode. You get 9999 experience points for this battle.

The Dark Star explodes into four pieces and dissolves into Bowser's body. Bowser spits out some clouds and they form the Dark Star's version of Bowser before his very eyes. It tells him that it copied his body and power. Bowser doesn't like the idea of someone copying his style. Dark Star Bowser says the power he copied isn't dark enough. It's power has been drained and it's not complete. It's looking for the dark power it needs and selects Peach, probably because she's an easy target, not because she's harboring dark power. It inhales Peach, but obviously, she doesn't have the dark power it requires. Bowser lays claim to Peach. "I HAVE POWER! Where is the Dark Star?!" Fawful is nearby, saying, "Fawful has more suction for the rest of the dark power!" The Dark Star recognizes the voice, saying Fawful drained it of its power. It breaks the electrical barrier and leaves. Bowser is upset that the Dark Star copied his moves in kidnapping Peach. He says there's only room for one Bower, and I agree. He follows it to see it clear a path ahead.

Mario and Luigi: Bowser's Inside Story -- Part 19: Ice Cold Darkness

Bowser's made it the second floor of Peach's Castle. Roll to push the device back to launch Bowser. Push it all the way back to launch Bowser into the sky. Some giant Fire Piranhas are growing up there and hit Bowser with fireballs. He lands on the balcony, in flames. "I HAVE CHORTLES!" Fawfulcopters appear and say, "Are you liking them? The giant Piranha Plants Fawful has raised? They are enjoying the barbecue of whatever goes near their mouths! Do they give you the angry face? Then just fly up and hit them with spikiness! Oh, but I have sadness! Tears of laughing for poor Bowser, who does not fly! I HAVE CHORTLES!" On the inside, the Chest Station is reacting. Jump into the cannon in the center and it will send the bros to what resembles a sling-shot. Tugging it makes Bowser jump. Pull all the way back to make Bowser jump really high. Tug in various directions to make Bowser go the way you want him to. Don't hit the Chomps or let the  Piranha Plants eat you on your way up. Try to stay towards the center. At the top are the giant Piranha Plants. Hit them repeatedly while dodging their fireballs. As they take damage, they become paler. Once they are defeated, Bowser drops back down to the castle, no longer on fire.

Go west and slam into the cracked for to drop down. You'll land in the servant's quarters. Use the treadmill to open the path to the east. Go south three times, heal, and save. Go south and then north on the left side of the room. Fawful, Midbus, Peach, and the Dark Star are this room. "I HAVE CHORTLES! AND I HAVE EXCITEMENT! At last, the Dark Star awakes like a naughty napping baby!" Midbus brings Bowser to Fawful's attention. "Fawful hates your timing! A nuisance barge barging in a the critical time for us!" Bowser just wants Peach and the Dark Star and he'll call it even. Midbus says he'll deal with Bowser. "I have uneasiness... Bowser keeps appearing like an ugly rabbit from the hat of a magician who stinks! So Fawful will fight to help Midbus have victory! But Midbus has pride... So Fawful leaves him to you! MIDBUS! POWER UP!" Fawful pulls out a ray gun and shoots Midbus with it, powering him up with ice powers.

As always, Special Attacks work best. Midbus will make Snawfuls, Fawfulized snowmen, that Bowser can inhale. Let the bros deal with them using Fire Flowers. Any that remain will heal Midbus. The Snawfuls will melt down and create vapor clouds. When six of them appear, Bowser will exhale the vapor, which will freeze and land in Midbus's crown, preventing him from using certain attacks. He'll climb up to the ceiling and throw snowballs at Bowser, many of which will miss. Just duck when you need to. He'll also slam Bowser from the ceiling. He'll roll in on a giant snowball with a Bob-omb in it. Punch the Bob-omb to blow up the snowball. When you do enough damage, he'll hide the Bob-omb in the snow, so try to keep track of where it is. Sometimes, he'll punch Bowser. A few rounds of Broggy Bonker should be enough to deal with him.

Once he is defeated, he says that no one will beat Fawful. He freezes in place, spewing icy vapor from his nose. The glass encasing Peach shatters and the Dark Star wakes up and breaks free. "It it it it it it it... IT WAKES! It has awakeness at last! Fawful has waited so long! I HAVE SUCTION!" He breaks out his headgear, saying, "With this, I am taking the Dark Star's Power!" Lightning strikes all around and the exit is blocked. "I... have... DARKNESS! So very darkness! The dark power builds like a skyscraper of evil! With the dark power in me, the world.... The world... IS FOR FAWFUL!" The dark power transforms Fawful, but Bowser punches him away, saying the world is his. He wants to take the Dark Star, and the world with it. The Dark Star circles Bowser, with mouth agape, then splits apart and enters his body. Bowser tells Starlow the Dark Star tasted funky. His chest starts burning, so he inhales some of Midbus's vapors for relief. This makes the Airway react. The freezing air freezes the water in the pipes. Starlow says freezing and thawing the water will make it possible to reach new areas. She also tries to convince Luigi that he's not cold. Heal and hit the Save Block. The enemies are tougher here, making this a good place to train.