Kirby's Dream Land 2/Dark Castle

Section 1
Collapsing bridges cross over the huge gap towards Dedede's castle. Don't stay in one spot for too long, or you could find yourself plummeting into the abyss. Fortunately, the enemies in this area aren't very threatening, so you shouldn't have too much trouble making your way to the end. There's even a Health Drink halfway through the level if you do take any damage.

Section 2
While this section might look like a vertical climb, the screen automatically scrolls horizontally instead. As soon as you enter the section, quickly jump up the platforms to reach the top, then stay alert as the screen continues to scroll down a straight hallway. Running Waddle Dees as well as well-placed Bouncy Tys will attack you from the front and behind. Evading them is very difficult due to the screen scroll, so you can take a bit of damage if you're not dexterous enough. Go through the door when you see it before the screen scrolls too far right.

Section 3 - Mid-Boss: Efreeti
Efreeti is the first of seven mid-bosses that you will have to face on your way to King Dedede. There are no gimmicks here, so just defeat it like you've did countless times before to clear the stage.

Section 1
This stage begins with an underwater section. While the level layout is fairly straightforward, this section is filled with Glunks that can fill the water with their projectiles. Swim carefully and try to defeat them one at a time. Don't be too hasty once you surface, as there are icicles dropping from the ceiling on the hallway to the door.

Section 2
This is a rest area with every copy ability-granting enemy safely contained. Choose the ability you're the most comfortable with and move on further into the stage.

Section 3
This section has two halves, with Section 4 connecting the two together. The first half has you hopping over spiked floors, which is quite simple to do if you're just Kirby or is with Coo, but challenging otherwise. At the end, go through the top door to progress. Once you've made it to the right half of the section, be sure to go through the bottom right door for some nice rewards. Continue down the hallway, where icicles will fall from the ceiling and sections of the floor can collapse. Be fast and careful at the same time in order to make it to the end unscathed.

Section 4
There are three parts of section 4 that you can reach. The lower-left chamber, reached by the corresponding door in Section 3, is empty, while the lower-right chamber contains three 1-Ups. The top part contains a trapped Animal Friend, guarded by a simple Blade. You can actually reenter this room and defeat Blaze over and over again until you get the Animal Friend you want.

Section 5 - Mid-Boss: Master Green
Master Green is the second mid-boss that you must fight on the way to King Dedede. Like Efreeti, the fight with this oversized jellyfish takes place in a simple room. You should be quite experienced with it from multiple encounters from before, so you should have no trouble defeating it.

Section 1
Kabus are hidden everywhere along this mountainous path. Don't rush forward too hastily to avoid getting ambushed by them. They will materialize when you get near and drop down, so you should be able to avoid them if you take things slowly. Later in the section there are also Gordos and challenging platforming sections, but you should be quite adept at dealing with them by now.

Section 2
This is another auto-scrolling stage, but with more different paths to take. The screen will only scroll to the right, so don't be too worried if you miss a hallway or two, as they likely contain nothing. There is plenty of space to move around, so getting crushed wouldn't be too big of a concern. There are also a considerable number of Propeller Bombs here, so it's going to be really difficult to keep your Animal Friend.

Section 3 - Mid-Boss: Mr. Frosty
Mr. Frosty is the third mid-boss you must face. Again, the fight is in one simple room and the boss's attacks are unchanged, so just defeat him like you've defeated Efreeti and Master Green. The exit door will open once you do.

Section 1
If you have a strange feeling of deja vu, it's probably because this section is exactly the same as the first section of the island's first stage, only now you're going from right to left. However, instead of the simple enemies you encountered on your first pass through here, the enemies this time around are much tougher. Most of the knight-like enemies you can find here cannot be inhaled, and their attacks are difficult to dodge due to the lack of solid ground. Luckily, there are also plenty of Load Kibbles that you can get the Cutter ability from, letting you take out these tough enemies from a safer distance.

Section 2
Like the section before, this section is an exact copy of the same section from the first stage, but going from right to left. The screen now auto-scrolls in the opposite direction. You still have to quickly jump to the top level at the start, but now you will be going down the left hallway at the top. The Star Blocks make it harder to simply rush through this corridor, and there are uninhaleable enemies like Mumbies and Scarfies to further obstruct you. There is also a Flamer here, and the Burning ability it grants is very handy for tearing through the obstacles here.

Section 3 - Mid-Boss: Waiu
You've fought against three different mid-bosses to reach their respective stage's exits before, and this one isn't any different. Waiu is a bit faster and more unpredictable than the previous ones, though since you have fought it before, you should be able to anticipate its attacks and respond accordingly.