Hazy Maze Cave - Swimming Beast in the Cavern

N64
In the room with the partially flooded hallway, there is a door with a star on the left. In the center of the room is a pool. In the corner on the lower level is Toad, who says "Hold onto your hat! If you lose it, you'll be injured easily. If you do lose your cap, you'll have to find it in the course where you lost it. Oh, boy, it's not looking good for Peach. She's still trapped somewhere inside the walls. Please, Mario, you have to help her! Did you know that there are enemy worlds inside the walls? Yup. It's true. Bowser's troops are there, too. Oh, here, take this. I've been keeping it for you." A Star appears. That was nice. Toad had a Star hidden for us. We must talk to him more often.
Star Get #40, 5 Lives
When we jump into the pool, we find ourselves underground, with a remix of the underground theme. The path immediately forks, so we go left and long-jump across the gap over the abyss. We go through the door on the other side and take a hit from a spider. We walk across a grate circling a hole to the abyss. We see an endless stream of rocks periodically rolling into it. We jump to the grass where the rocks are rolling and dodge them, making our way up to the door to the right of the back wall. Through the door, we see a Star on the other side of a grate. We can't reach it for now, so we'll get it later. There is a 1-up in the item block near the wall. We step the elevator down into the cave. In the cave is a pool, in which a giant dinosaur swims. It's name is Dorrie, and we can safely approach it and ride it to reach places we can't reach on our own. We climb on Dorrie's back and she circles the island in the center of the pool. Dorrie will go in whichever direction we face, so we can steer it. We make Dorrie face the island and we walk up on her head and jump to the island. The Star is in the center of the island.
Star Get #41, 24 Coins, 6 Lives
Nintendo DS
If we talk to Toad in the Hazy Maze Cave room as Yoshi, he says "You don't normally wear a cap, huh, Yoshi? You should. I think one would look really good on you. Plus, my advice is only for the fashion forward. That said, let me give you this. I had it hidden for you." He gives us a Star.
Star Get 47, 4 Lives
If we talk to him again, he says "That dinosaur-skin look is so aeons (eons) ago. You know, even a cap would really spice up your look. Come back when you get one, because I have advice for the fashionably dressed." As in the N64 version, he wants to talk to us about caps, so we need someone wearing one to get the information.
If we talk to him as Luigi, he says "A piece of advice for the hapless Luigi: Even if the caps look the same, the one you've been wearing for years is special. It is said when you lose your cap, your luck runs out, too. When you're that unlucky, you shouldn't hit a ? Block... Who knows what might happen? If you lose your cap, you'll find it in the course where you lost it. Oh! Take this with you. I had it hidden." If we talk to him again, he gives us the same speech, then says "If you lose your cap, hitting a ? Block will spell disaster! But don't worry too much. If you lose your cap, you'll find it in the course where you lost it-- just look at the map below."
As Mario, he gives a similar speech to the one he give Luigi, but says "Without it (your cap), your luck turns sour! Hitting ? Blocks without a cap can be downright dangerous! Don't try it!"
We enter the Hazy Maze Cave as Mario, but it doesn't matter who we use. We long-jump across the gap to the left and enter the area with the rolling rocks. There is a bridge to the grassy area in this version. We take a hit from a rolling rock. We wall-jump near the doorway to get a 1-up on the ledge closer to the hole. We fall off the ledge and go through the door. There is a Star on the other side of the grate and a 1-up in the item block. We go down the elevator into the cavern. There is a Bob-omb Buddy near the elevator who says "Fashion trends are so fickle! Now it's yellow caps that are in! I just saw one around here. Go find it!" There is a yellow cap circling the center island on the Touch Screen map. We approach the pool to find Dorrie, with an updated sprite with goggles. On Dorrie's head is the yellow cap. We ground-pound Dorrie's back so it's head lowers and we get the cap. It shrinks to fit our head and we turn into Wario! We have more power, so we can break heavier objects. We speak to the Bob-omb Buddy again, who says "Your yellow cap is super cool! You must be a trend starter because I see them a lot around here lately. In fact, I thought I just saw one. Where was it?" We go onto the island (which we can reach without Dorrie) and see a rock where the map says the Star is. We punch the rock and the Star appears.
Star Get #48, 20 Coins, 6 Lives
The next mission is Behind the Waterfall.