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Heavy Metal Mecha-Bowser
Super Mario 3D All-Stars

Heavy Metal Mecha-Bowser

Complete the Heavy Metal Mecha-Bowser boss fight in Super Mario 3D All-Stars. Learn how to use Spring Mario and unscrew bolts to defeat the giant toy.

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Complete the Heavy Metal Mecha-Bowser boss fight in Super Mario 3D All-Stars. Learn how to use Spring Mario and unscrew bolts to defeat the giant toy.

Toy Time Galaxy is the first level available in Toy Time Galaxy and unlocks with 40 stars in the Engine dome.

Walkthrough
  1. 1
    Take one of the two toy trains on the starter planet to the Star Launcher on the opposite platform.
  2. 2
    Use the Launch Star to reach the next area with toy structures.
  3. 3
    Navigate the gravity walls by walking over yellow platforms near the green wall, jumping to the purple wall area, heading down, and moving to the other side.
  4. 4
    Follow the purple path around back and hop onto the spinning platform.
  5. 5
    Spin attack the blue screw to get star bits, then spin attack the gold screw to move a cage out of the way.
  6. 6
    Jump to the next purple path, follow it up to the Launch Star in the alcove.
  7. 7
    On the next toy structure, grab the Golden ? Coin to transform into Spring Mario.
  8. 8
    Use Spring Mario's constant bouncing and high jump ability (hold or press A/B) to cross two conveyor belts towards a tall toy tower.
  9. 9
    Avoid the sentry beamer's laser, which will destroy your Spring Mario form.
  10. 10
    Jump up the tower of toy bricks to find a Launch Star.
  11. 11
    Fly to a plate with a spoon and jar. Grab the Spring Mushroom near the jar.
  12. 12
    Use Spring Mario's jump to get on top of the jar, then ground pound the concrete cork to enter it.
  13. 13
    Use the Star Launcher inside the jar to reach the final area.
  14. 14
    Land on the Mecha-Bowser toy. Go across the conveyor belt floor and wall jump up its left leg.
  15. 15
    Unscrew the blue screw on the left leg, then head down the warp pipe to the other leg.
  16. 16
    Unscrew the screw on the right leg, then use the appearing Sling Star to progress.
  17. 17
    On Mecha-Bowser's torso, unscrew the screws at the corners of the green metal plate, avoiding fire bars.
  18. 18
    Once the plate falls off, enter the bottom alcove and use the warp pipe.
  19. 19
    Pop up on a platform attached to Mecha-Bowser's arm. Move along the hand and forearm to the shoulder.
  20. 20
    Unscrew the shoulder screw, causing the arm to fall. Use the quickly spawning Star Launcher to reach the final area.
  21. 21
    Land on a platform attached to Mecha-Bowser's head. Grab the Spring Mario mushroom.
  22. 22
    Jump to the head, avoiding cannon blasts and a Magikoopa.
  23. 23
    Use Spring Mario's powered jump to reach the top of Mecha-Bowser's head.
  24. 24
    Jump onto the stack of concrete slabs and ground pound down into Bowser's head to explode the toy and spawn a Power Star.
Tips
  • Spring Mario can jump extra high by holding or pressing A/B, but control can be tricky.
  • If your Spring Mario form is destroyed by a sentry beamer, you'll need to head back and grab another Spring Mushroom.
  • You'll need to unscrew many screws throughout this level.
  • Be quick to use the Star Launcher that spawns after unscrewing the Mecha-Bowser's arm screw before the arm falls off.

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