Galoomba

Galoombas (named "Goombas" in Super Mario World) are somewhat rare enemies from Super Mario World. They either walk across the ground, parachute from above or float down in bubbles (which burst upon coming into contact with any object), or can even appear with wings to hop around. They later reappear in Super Mario 3D World, where they are given the name "Galoomba" to distinguish them from actual Goombas.

Super Mario World
Galoombas first appear in Super Mario World, in which they are simply called "Goombas" despite acting differently. Although these creatures walk in straight paths to attack, like regular Goombas, these new baddies do not resemble the older ones. Goombas do not have mushroom-shaped heads, but spherical ones. They also lack a stem: the Goomba's two feet are attached directly to the bottom of the head. As such, they resemble chestnuts more than mushrooms.

Goombas cannot be defeated in a single jump, as doing so flips them over and immobilizes them. In this state, they can be picked up and thrown at other enemies, like with Koopa Troopas. Running into them or jumping on them when flipped causes them to be kicked around. After a few seconds they right themselves, which damages Mario if he is carrying one. They can automatically be defeated with a Spin Jump, or with a fireball or an attack from Yoshi; an attack with the cape causes them to be flipped over as well.

There are two variants of Goombas in the original game. Para-Goombas are Goombas which utilize parachutes instead of being Goombas with wings. Winged Goombas also appear, and can only hop on the ground instead of fly. Like Paragoombas, Winged Goombas' wings are clipped after one jump, leaving them rendered as a normal enemy. However, just as the Goomba counterparts in Super Mario World, stomping on them after their wings are gone just renders them helpless for a few moments, allowing the player to throw them at other enemies. This variation later appeared in Mario Clash.

In the Super Mario World Game Boy Advance remake, Super Mario World: Super Mario Advance 2, after the player beats the Special World and finds all of the exits, the Goombas are colored yellow and wear sunglasses.

Super Mario 3D World
Galoombas reappear in Super Mario 3D World after eight years of absence, alongside regular Goombas and a bigger variation named Big Galoomba. Like normal Goombas in 3D Mario games, they attempt to chase after the player upon seeing them. Additionally, like in Super Mario World, Galoombas cannot be defeated with one jump, as that causes them to be flipped over, though unlike Super Mario World a second jump defeats them. A Ground Pound can also be used to defeat them in one hit. Additionally, Galoombas cannot be kicked around, as running into them while immobilized also causes them to be defeated.

Super Mario World cartoon
Galoombas appear twice in the Super Mario World cartoon. They first appear in "The Wheel Thing", in which they are shown as being the "power source" for the cars made by Mario and Luigi. Galoombas also briefly appears in "The Yoshi Shuffle" in the audience during the football game. Winged Goombas of this variety appear earlier in "Fire Sale".

Mario Party 3
Flying Galoombas appear as an obstacle during the mini-game Ridiculous Relay. The single player must dodge both them and Banzai Bills in their hand glider, and reach the finish line before the other thee players do.

Mario Party Advance
Two Galoombas appear in Mario Party Advance at Goombob Manor, named Goombob and Goombetty.

Trivia

 * In Super Mario Galaxy and Super Mario Galaxy 2, Micro-Goombas have an appearance similar to Galoombas.
 * In Super Smash Bros. for Wii U, while Galoombas do not appear directly in the game, they are mentioned in one of the randomly-generated Tips. In it, it is clarified that Super Mario World has no Goombas, and that Galoombas are an unrelated species.