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Super Mario 3D All-Stars

The Princess' Secret Slide

Ben Chard
Jarrod Garripoli
, &
Seren Morgan-Roberts

The Princess’ Secret Slide is accessible through a door up the stairs and to the right of the large locked door. You will require at least one Power Star in order to enter the room, where you will find three windows with Princess Peach’s image on them. The window on the right when your back is to the door is false, so you can go through it to arrive at the secret slide. You might see a Blue Coin Block in the area before the actual slide, but you don’t benefit from it, as this classifies as one of the castle’s secret stars. All of the secret stars are in one-off areas, meaning there’s usually only a single star in these areas.

(1 of 2) Just jump through the right window to get to the secret slide

Just jump through the right window to get to the secret slide (left), The second star will spawn if you reach the finish in under 21 seconds (right)

For Princess’ Secret Slide, though, there’s actually two stars here, one for completing the slide itself and another for finishing it under a specific time. Read the sign before the actual slide begins to get a gist of the controls, where you tilt the left analog forward to speed up or pull it down to slow Mario. As soon as you start sliding on the track, the timer will begin, but it’s best to run it a few times to get a feel for the layout. There’s nothing too special about the slide itself, although you won’t have any rails on the side for the middle portion, so you could fall down into the abyss.

Thankfully, you don’t lose any lives for falling into the abyss, with Mario just being deposited in the main hub. At the end, you will find a yellow box that contains a Power Star. The other, more hidden, star requires you to finish the course in under 21 seconds. You should be tilting the left analog stick forward for the majority of the slide, and cutting corners as much as possible. You just need to keep going until you get under 21 seconds, with the star spawning as soon as you cross the finish line under that time.

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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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