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Super Mario 3D All-Stars

Beware of the Bouldergeist

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

Description

Beware of the Bouldergeist is the boss level of Ghostly Galaxy in the Kitchen dome.

Make Your Way to the Mansion

Once again, you’ll need to use the Launch Star on the Toad Spaceship to take you to the Mansion Grounds. This time, you’ll find lots of Bats and Spranglers, which are spooky spiders. Defeat them or avoid them and head down the path towards the mansion.

Bomb Boos

Inside the mansion, you’ll be introduced to a new enemy: Bomb Boo. You can press Y to grab it and spin it into objects to explode it. There are lots of stone statues in this room that you can practice spinning the Bomb Boos into, but the statue you need to explode is the one in the fire place. You’ll then be able to use the Launch Star in the fireplace to travel to the next area.

Swing the Bomb Boo into the Statue in the fireplace.

Collect the Pull Star Chips

In this next area, you’ll need to use the Sling Pods. Jump into it using the Jump Spring, then use your Star Cursor to grab it using A and pull it back and release. It will give Mario a small boost into the air. On this first planet you’ll need to use the different Sling Pods to climb up the wall and then get into the Launch Star.

On the next planet, you’ll need to use the Sling Pods to collect 5 Star Chips. There are multiple Sling Pods in this section, and you can use the different Sling Pods to transport Mario to the other ones. Once you have all the Pull Star chips a Pull Star will spawn to the left of the Sling Pod Wall. Pull yourself to it and then pull yourself to the next Pull Star that is in the rotating holey comet. Then, use the Launch Star to take you to the next planet.

Use the slingpods to grab all the Pull Star chips.

Bouncy Ball Planet

This planet consists of an exterior holey layer and an inner bouncy ball core. Drop down onto the Bouncy Ball and grab the 1-up Mushroom. Then wait for the holey exterior to align and jump on the Ball to jump into the Launch Star that’ll take you to the final boss area. Make sure you watch out for the Floating Mines!

The bouncy ball is very…bouncy?

Bouldergeist Boss Fight

When you land on the new planet, you’ll have the option to buy an Extra Life Mushroom or a 1-up Mushroom from the Luma, for 30 Star Bits.

The Bouldergeist will throw lots of boulders at you, including black boulders that turn into Bomb Boos and golden boulders that smash into golden coins to give you extra hp. He will also occasionally cause stalagmites to grow out of the ground, so watch out you’re not standing on those or you’ll take some damage!

You’ll need to grab the Bomb Boos and spin them into the Bouldergeist. Damage him three times and you’ll destroy his rocky exterior. When you damage his weak ghost body, you will trigger his next phase. In the next phase, he will create giant rock arms for himself. He will use them to punch and flatten you so watch out! You’ll need to spin Bomb Boos into his body to damage him permanently. If you spin them into his arms, they will be destroyed but only temporarily as he’ll recreate them and he won’t take permanent damage. Spin Bomb Boos at his body three times to reveal his ghost form and then throw a final Bomb Boo at him to defeat him for good and grab the Power Star!

(1 of 2) Smash Bomb Boos into the Bouldergeist to break down its rocky armor

Smash Bomb Boos into the Bouldergeist to break down its rocky armor (left), second phase Bouldergeist has big arms and hands! (right)

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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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