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Super Mario 3D All-Stars

The Secret Aquarium

By
Ben Chard
,
Jarrod Garripoli
, &
Seren Morgan-Roberts

In order to access this secret star, you will need to have three Power Stars in your possession. In the main lobby, look to the right and you will see a door with a “3” on it. Open this door and you should see a painting in front of you, but that’s not the goal. While facing the painting, look up and to the right to see a hole in the wall. Jump up to this hole and go inside it to enter the secret aquarium. First and foremost, the entire place is filled with water, so you will not be able to find any spot to go up for air. That means you will need to collect coins in order to refill your life.

The entrance to the secret aquarium is through this hole pictured

So, your goal in this secret aquarium is to collect a total of eight Red Coins. They are really easy to get, too, as they are all really close to one another. In fact, there are four rings of regular coins that have a Red Coin in the center of them, located at four points. The other four Red Coins are found on the floor, in the corners of the room. Once you collect all eight Red Coins, the Power Star will spawn in the middle of the room.

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Guide Information
  • Publisher
    Nintendo
  • Platforms,
    Switch
  • 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

Share this free guide:

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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