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Super Mario 3D All-Stars

Episode 1: Dune Bud Sand Castle Secret

Ben Chard
Jarrod Garripoli
, &
Seren Morgan-Roberts


This page offers a walkthrough of Episode 1: Dune Bud Sand Castle Secret in Gelato Beach.

Spray the Dune Bud

When you arrive on the beach, you’ll need to find a Dune Bud and spray it so that the Sand Castle appears. There are a fair few Dune Buds on the beach but you’ll need to spray the one circled below to trigger the spawning of the Sand Castle. The Dune Bud you need is in line with the beached boat, so you’ll come across it fairly easily if you just head down the beach towards the boat. It is also adjacent to a piece of land that juts out into the water (this is where the Sand Castle will also spawn).

There are lots of Dune Buds, but this is the one you need to spray to make the Sand Castle appear.

After spraying the correct Dune Bud and spawning in Sand Castle, head over to it and walk through the arch to enter into the next stage of this episode.

Falling Sand Path

Inside the Sand Castle, you’ll need to make your way over a long and winding path consisting almost entirely of sand blocks that begin to fall as soon as you step on them. They’re not too hard to run over and they don’t fall straight away, so there is definitely room for a few mistakes. When you reach the end of the path, you’ll then need to climb up a small moutain that is mostly made up of sand blocks. There are two peaks, the furthest away from the path has a 1-up Mushroom and then at the top of the one that hangs over the sand path, you’ll find the Shine Sprite.

(1 of 2) Run along the paths and watch you don’t fall when they start to sink

Run along the paths and watch you don’t fall when they start to sink (left), when you’ve made your way to the top of one of the peaks you’ll get a Shine! (right)

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Guide Information
  • Publisher
  • Platforms,
  • Genre
    Action Adventure, Platformer
  • Guide Release
    24 September 2020
  • Last Updated
    8 February 2021
    Version History
  • Guide Author
    Seren Morgan-Roberts, Jarrod Garripoli, Ben Chard

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This guide for Super Mario 3D All-Stars offers a walkthrough for all three Mario classics.

Inside this guide you will find:

A 100% Walkthrough - For Super Mario 64, Super Mario Sunshine and Super Mario Galaxy.

A complete guide on Super Mario 64, including:

  • A layout of Peach’s Castle, with each course’s location pinpointed, as well as an overview of each course.
  • Walkthroughs for every star, including all courses’ 100-coin star.
  • How to get each of the power-up caps.
  • The location of every single Secret Star found in Peach’s Castle.

A complete guide on Super Mario Galaxy, including:

  • A Dome Overviews page outlining every galaxy found in each Dome.
  • Walkthroughs for every star, including hidden stars and comet stars, found in each galaxy.
  • A guide on how to unlock the Planet of the Trials galaxies.
  • Detailed coin-by-coin walkthroughs of Purple Coin levels.

A complete guide on Super Mario Sunshine, including:

  • Walkthroughs for every shine in every episode.
  • How to find every Blue Coin.
  • Strategies on how to secure 100 Coins on every Course.

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