How to clear #6 Wendy's Castle in Super Mario World for the Super Nintendo Entertainment System and Game Boy Advance.
How to Clear Wendy's Castle
Go to the right and there is a Dry Bones that throws a bone. You can crouch under or jump over the bone. To the right of that, there are two Jumping Boards beneath a Skewer. The Skewer moves partway down from the ceiling, then slams all the way down, then slowly goes back up again. Wait for the Skewer to be going back up before you use a Jumping Board to reach the ledge above and to the right.
Go to the right and make sure not to run into the two spikes on the wall. Down below, as you go to the right, get in the ditch and crouch to avoid the Grinder blade that rolls from right to left on the track. Then try to run to the right, and if a blade appears from the right, go back to the area with the higher ceiling and jump over it. Then run to the right, wait for the Lava Bubble to go back into the lava, then jump onto the Gray Block over the lava. If you have been to the Red Switch Palace, there will be two Red Blocks to the right of the Gray Block, giving you a bigger platform to land on.
To the right of the platform over the lava, there is another Lava Bubble, so wait for it to go back into the lava, then jump down onto the ledge to the right of the lava pit.
Go to the right, where there are blades on tracks and a lot of Skewers that slam down from the ceiling. You will need to stand in the path of the blades and jump over them or duck under them while you wait for the Skewers to go back up. The final track has two blades going in opposite directions.
After this area, there are some Gray Blocks, and three blades on tracks. You can get a 1-Up Mushroom by standing below and one square left of the bottom-left Gray Block, then jump up so you touch the left side of the Block, then land on top of it, then fall off the right side so you touch the right side of the Block, and the 1-Up Mushroom will pop out.
Jump up the Gray Blocks (and the Blue Block if you have been to the Blue Switch Palace, crouch if a blade is about to go past your head, and carefully make your way to the right when the blades are out of the way.
To the right, if you have been to the Yellow Switch Palace, there will be a Yellow Block that you can hit to get a Super Mushroom.
To the right, there are Skewers that rapidly move up and down. The middle Skewer comes up from a pit in the floor, and if you have been to the Red Switch Palace, the pit will be covered up so you can run past it instead of having to jump. Quickly run and jump past each Skewer as soon as it is out of the way.
Go to the right and go through the Midway Gate, then go through the door.
Wendy's Palace, Part 2
Go to the right and there is a Lil Sparky that moves quickly around a floating platform. If you have been to the Yellow Switch Palace, there will be a Yellow Block that you can hit to get a Super Mushroom.
There is a corridor to the right that goes up and down. Wait for it to be close enough for you to jump into it, then go to the right side of it. After that, there is a Hothead that is much bigger than the Lil Sparky and moves much more slowly.
Stay on the Hothead platform until the ceiling on the right starts going back up, then jump to the right. Make your way to the right side, then jump off onto the small platform with the Lil Sparky. When the wall between your platform and the next one has gone up far enough, jump to the next platform, which has a Hothead on it.
Then wait for the platform on the right to move down far enough for you to jump on top of it. There is a small moving platform on the right. Jump on it, then jump onto the stationary platform with the Lil Sparky on it. There is a moving platform down below, and a wall that moves up and down. Wait for the wall to be going back up, then try to jump onto the platform that moves from left to right, and jump from there to the platform on the right with the Hothead.
Next, wait for the platform on the right to be moving down, but make sure not to let the bone from the Dry Bones hit you, and jump on the moving platform. Another Dry Bones may land on the right side of the platform.
There are four floating platforms on the right. Jump on one of them, then jump to the ledge on the right. If you have been to the Green Switch Palace, there will be a Green Block that you can hit to get a Cape Feather.
Then go through the big door to reach the castle boss.
Wendy O. Koopa
There are two Lava Bubbles that move diagonally around the room. Wendy will appear in one of the pipes, and there will be two Decoys in other pipes. If you stomp a Decoy, nothing bad will happen, but you won't get any closer to defeating Wendy. Try to stomp Wendy whenever she appears, and don't walk into Wendy or the Decoys from the side, or you will get hurt. After you stomp Wendy three times, she will be defeated.
After the Level
The path to the north opens, and you can go to Sunken Ghost Ship.
Get Super Mario World by subscribing to Nintendo Switch Online