Big Steely

From the Super Mario Wiki, the Mario encyclopedia
Big Steely
BigSteely SMW.png
A giant ball that will roll left to right or on a path.

First appearance

Super Mario World (1990)

Latest appearance

Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey (2018)

Effect on player

A Big Steely will attempt to roll into the player, resulting in that player losing health.

Big Steelies[1] (also referred to as Bowling Balls[2]) are large iron balls that debut in Super Mario World as a final boss attack and return in Super Mario 64 as an uphill hazard.


Super Mario series[edit]

Super Mario World[edit]

Big Steelies first appear in the final battle with Bowser in Super Mario World. He drops these from his Koopa Clown Car. Mario or Luigi can jump over them to avoid getting hit. Mario or Luigi can also spin jump on them without getting hurt. It can be destroyed if Mario or Luigi uses his sliding cape attack against it using a Cape Feather, but it will show a glitched sprite.

Super Mario 64 / Super Mario 64 DS[edit]

In Super Mario 64, they are referred to as iron balls,[3][4] rolling balls,[5] or simply balls.[6] They appear in Bob-omb Battlefield; Tall, Tall Mountain; and Tiny-Huge Island as an uphill hazard. Several more also appear in the DS remake's Battle Fort. In the remake, Wario has the ability to destroy them by punching or kicking them.

Super Mario World television series[edit]

In the Super Mario World episode "Send in the Clown", King Koopa attempts to defeat Mario in one scene by dropping a Big Steely on him, which Mario dodges. King Koopa, with the same method, is shown dropping a Big Steely after Yoshi hits him with his Mechakoopas. Mario, however, uses a golf club and knocks the Big Steely at him.

Super Smash Bros. Melee[edit]

Big Steelies are mentioned in Super Smash Bros. Melee in the Koopa Clown Car trophy, known as "bowling balls".

Mario & Luigi: Bowser's Inside Story / Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey[edit]

In Mario & Luigi: Bowser's Inside Story, Big Steelies, referred to generically as "iron balls," appear in multiple locations. In Cavi Cape, Bowser must punch a falling one in order to knock it into a button (in the remake, these are replaced with barrels). Later, Midbus crushes Bowser with a massive one, prompting Mario and Luigi to visit the Arm Center one last time.

Mario & Luigi: Dream Team / Mario & Luigi: Paper Jam[edit]

There are Hammers called the Iron Ball Hammer and Iron Ball Hammer DX in Mario & Luigi: Dream Team and Mario & Luigi: Paper Jam, which sometimes causes an iron ball to fall onto a random enemy after an "Excellent" rating is achieved.

Other appearances[edit]

In Super Mario Maker, graphics for Big Steelies exist unused in the Super Mario Bros. game style's object graphics. The sprite is green instead of dark gray, however.


Names in other languages[edit]

Language Name Meaning
Japanese 鉄球[7][8]
Iron ball
German Eisenkugel Iron Ball


  1. ^ Nintendo Mario Mania Player's Guide. Page 52.
  2. ^ Nintendo Mario Mania Player's Guide. Page 148.
  3. ^ Super Mario 64 Player's Guide, pages 106, 107, 109 and 110
  4. ^ Super Mario 64 DS internal object name (IRONBALL)
  5. ^ Super Mario 64 Player's Guide, page 101
  6. ^ Super Mario 64 Player's Guide, page 19
  7. ^ Super Mario World Nintendo Official Guidebook
  8. ^ Shogakukan. 2015. Super Mario Bros. Hyakka: Nintendo Kōshiki Guidebook, Super Mario 64 section, page 92.