Cool, Cool Mountain - Frosty Slide for 8 Red Coins

N64
On my first take, I got 7 coins while trying to get 100 coins. I fell off when I tried to open the cannon on the floating isle and the lift back to the ground took off without me.
Take 2- See the first take.
Take 3- See the first take, but I got 3 coins.
Take 4- I got the first coin at the top of the mountain near the little penguin. I warped to the base of the mountain and found one on the bridge and another on the other side of the wall at the end of the warp bridge. The next one I found was above a tree near the mother penguin. I took the rope lift to the top, where another Red Coin waits. Along the side of the mountain is another Red Coin, past the snowman head. If you pass the snowmen on the bridge, there is another broken bridge with a Red Coin restting on it. The last Red Coin is tricky to find. I warped back to the top of the moutain and starting sliding down. When the path becomes a bridge, I jumped off toward the mountain, but tried not to slide too much down the slope. The last Red Coin is behind the stack of ice blocks. I warped back up the mountain and started sliding down again, past the bridge, where the path turns sharply that Mario may start sliding backwards. There is an edge at the turn and we jump over it and find a Blue Coin Switch. Nearby is where the Star appears.
Star Get #26, 60 Coins, 5 Lives

Nintendo DS
You need Yoshi for this mission. You cannot complete it without him. The Red Coins are in the same location, but two are frozen in ice blocks. The one at the top of the mountain is frozen. There is a fire nearby. Yoshi can stick his tongue into the fire and breathe one breath of fire. Oddly, we slid down the mountain, landing where the other frozen Red Coin is, where we jumped off the slide to get to in the N64 version. We breathe fire to melt the ice block and get the Red Coin. The other ice blocks will not fall on you. We get a 1-up from the item block. We jump off the ledge and find the next Red Coin at the base of the mountain slide near the Bob-omb Buddy. We grap the Red Coin at the top of the rope lift and cross the snowman bridge, taking a couple of hits. We get the next one near the broken bridge. We get the next two by the warp and another one in the tree, while waking up Hoo. Hoo takes us to the top of the mountain. We melt the ice block at the top for the last Red Coin. We check the map and jump off the mountain, landing near the Star.
Star Get #30, 19 Coins, 4 Lives
We get a message: "You've recovered 30 Power Stars! Now you can open the door with the big Star! But before you move on... Let's just check some things. Did you rescue poor, frightened Luigi? Did you pound the 2 colummns down? I heard that Bowser snuck out of the sea and went underground. Looks like you finally cornered him!
The answer to the 2 questions is no. We haven't even beaten Bowser for the first time yet with the way I'm going. We haven't even found Bowser in the sea, nor heard from Luigi. We'll take care of that. This is just what happens when you play the game in a different order and get more Stars than the game designers planned per check point. Let's keep going!
The next Star is Snowman's Lost His Head.