- Location: Second floor. The entrance to this course is located behind the staircase. It is a picture smaller than the rest along the wall of the main room, depicting mushrooms growing on a mountainside.
- Description: As the name suggests, Tall, Tall Mountain is a rather tall mountain with a secret slide, large waterfall, and cap-obsessed monkeys.
- Bob-omb Buddy: Start going up the mountain. On the platform just before the first monkey, look down. There he is, buddy!!
Tall, Tall Mountain is the twelfth course. Can be accessed after unlocking the second floor.
- 1 Star 1: Scale The Mountain
- 2 Star 2: Mystery Of The Monkey Cage
- 3 Star 3: Scary 'Shrooms, Red Coins
- 4 Star 4: Mysterious Mountainside
- 5 Star 5: Breathtaking View from (the) Bridge
- 6 Star 6: Blast To The Lonely Mushroom
- 7 Star 6: 5 Secrets of the Mountain (Nintendo DS)
- 8 Star 7: 100 Coins
- 9 1-Up Locations
Star 1: Scale The Mountain
At the very top of the mountain. It may easier to climb up above the Monty Moles than to go the normal way because you skip the rolling log.
When climbing above the gophers, you should backflip as it is much easier. Carry on going up, then long jump past the water fall to the other side. After a little way you will see a purple "!" switch. Ignore this, and carry on to the narrow stone ledge, cross this and then go to the top of the mountain. You will see the star now.
Star 2: Mystery Of The Monkey Cage
Go to the very top again and catch the monkey. He will ask you to let him go. Agree to let him go, then follow him and he will open the cage for you. The star will end up far, far below on a platform by the bottom of the waterfall.
Star 3: Scary 'Shrooms, Red Coins
Get all 8 red coins.
- The first four are found on the mushrooms near the beginning. Jump carefully, as one wrong step means falling to your death.
- The other four are found around the corner, on the cliff face above the Monty Moles.
Once you have all eight, jump back down to the Monty Moles. The star is on the mushroom right off the mountain, so long-jump to reach it.
Star 4: Mysterious Mountainside
Close to the top of the mountain, there is a square portion of cliff that ripples if you brush by it. Jump in to get on the secret slide. When the track splits (it will be marked by arrows beforehand), keep right. You have to go fast enough to make it across the jumps, so don't slow down. If you get to the bottom, your reward is a star.
If you die here, whenever you go back in the painting, you will find yourself back here until you beat the level.
Alternatively, you can skip the slide altogether, and jump on the Fly Guy's head (he's by the big brown log), and helicopter into the alcove with the star in it (the slide exit.) Note that the only way to do this on the DS version is to use Luigi's invisibility power.
Star 5: Breathtaking View from (the) Bridge
Climb up the mountain all the way to where the waterfall starts. On the bridge right before that, you will be able to see a small hole behind the waterfall. The star is contained there, so jump into the hole and get your star.
This was moved to star 7 in Super Mario 64 DS.
Star 6: Blast To The Lonely Mushroom
Long jump from the mushroom where the red coin star is to the pathway far below. Go over to the cannon. Shoot to the mushroom with the star out on it. The Bob-omb Buddy is standing on a hard to find ledge. Take the hard way up the hill and just past the purple people thrower there is a wooden plank, after the plank you will be on a small island. Look down to your left to find a small gap that has Bob-omb Buddy. Jump down.
On the mushrooms with the red coins, there are three little mushrooms just past the yellow exclamation box. Stand on the middle one to warp to the beginning of the cannon path. Aim the cannon so the tip of the bottom aiming reticule is at the top of the cloud above the star.
Alternatively, you can jump on the fly guy and simply helicopter to the lonely mushroom with the Star on it.
Star 6: 5 Secrets of the Mountain (Nintendo DS)
As Mario, climb to the top of the mountain and get the Wing Cap. There are five rings of coins with one coin in the center. The coin in the center is the one you are aiming for. You will need to take a couple landings. After collecting the five coins, the Star will appear at the top of the mountain.
Star 7: 100 Coins
Collect 100 coins.
- Right when you start, there are 3 Goombas for three coins.
- Head backwards and to the right, past the 1-Up and into the abyss. The wind will catch you and pick you up, so don't worry. There are three Bob-ombs for 3 coins.
- A little further, there is a Chuck-ya. Chuck it and collect the five coins it produces.
- Walk over the bridge, and get the five coins on that bridge.
- There is a Fly-Guy here. Be careful when ground-pounding it, as it can be difficult to get the two coins from up here.
- Get to the other side of the rolling log, and take the lower path. There are two Bob-ombs here for two coins.
- You are now at the top of the cliff face where the red coins were. There is a grille made out of vines that you can grab onto, with five coins in a line underneath. Be wary of the Monty Moles.
- Further up the mountain, there are another three Goombas for three coins.
- Keep going forward, jump over the gap near the waterfall, and get the five coins near the entrance to the Secret Slide.
- Jump into the Secret Slide, and collect as many of the coins as you can. Don't worry if you don't manage to collect all of them, you can come back later.
- Once you've finished the Secret Slide, jump out the exit, and you'll land right where you started. Take the lower path this time, and you'll find a coin ring with 8 coins. You should have enough for the star by now.
The following is a list of where to find all 11 green mushrooms in Tall, Tall Mountain.
- Behind the start, there is a very small ledge. A 1-Up is sitting there.
- Inside a ! Block on one of the mushrooms in the group with the red coins.
- If you continually jump on the Monty Moles, you can get a 1-Up. There are two groups of Monty Moles, so two 1-Ups can be acquired.
- One of the ledges on the cliff with the red coins has a 1-Up.
- Hidden near the waterfall but before the entrance to the Secret Slide, there is a 1-Up on a ledge.
- If you walk in all the corners of the room that you land in when you enter the Secret Slide, a 1-Up appears.
- Just outside that room but before the Slide, there's a 1-Up hiding behind the right wall.
- There are two 1-Ups on the Slide itself.