Big Steely

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Big Steely
BigSteely SMW.png
A Big Steely is a giant ball that will roll left to right or on a path

First Appearance

Super Mario World (1990)

Latest Appearance

Super Mario 64 DS (2004)

Effect on Player

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

Big Steelies[1] are large iron balls that appear in Super Mario World in the last battle with Bowser. He drops these from his Koopa Clown Car. Mario can jump over them to avoid getting hit. Mario can also spin jump on them without getting hurt. It can be destroyed if Mario uses his sliding cape attack against it using a Cape Feather but it will show a glitched sprite.

In the Super Mario World episode "Send in the Clown", Bowser attempts to defeat Mario in one scene by dropping a Big Steely on him, which Mario dodges.

Bowser, 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.

Big Steelies also appear in Super Mario 64 and Super Mario 64 DS, in Bob-omb Battlefield, Tall Tall Mountain, Tiny-Huge Island, and, in the DS remake, Battle Fort. They come out of holes and roll in the ground. If Mario gets hit by one, he will lose two wedges of health. In the original game, they are indestructible, but they can be destroyed with a punch from Wario or a Super Mushroom in the remake.

In Mario Kart DS and Mario Kart 7, there are giant pinballs in Waluigi Pinball , which resemble the Big Steelies. Analyzing data of Super Mario Maker shows that Big Steelies were originally going to appear in the game, as their sprite can be found within the game's files.

In the Mario Mania Player's Guide, they are referred to as "bowling balls".


  1. ^ Mario Mania, page 52.