Part of The Super Mario Galaxy Movie. For characters, objects, and species, see Characters, objects and species.

Items marked "(new)" did not appear in The Super Mario Bros. Movie.

Power-ups
Power-up → Form	Description
Super Mushroom → Super Peach	From Super Mario Bros., where it makes a character grow and take an extra hit. Peach eats one while trying to pressure Wart into revealing where Rosalina is held.
Fire Flower → Fire Mario and Fire Luigi	From Super Mario Bros., granting fireballs. The brothers use the flames as torches to navigate the dark Inverted Pyramid.
Frog Suit (new) → Frog Luigi	From Super Mario Bros. 3, allowing high jumps. Luigi uses it to drop onto a Big Cheep Cheep from above and save a swallowed blue Toad.
Cape Feather → Cape Mario	From Super Mario World, enabling flight. Mario uses one to soar up and plant a flag atop the rebuilt Peach's Castle.
Blue Mushroom → Mini Bowser	Called the Mini Mushroom in New Super Mario Bros., it shrinks whoever takes it. The item itself does not appear, but Bowser cites it as the cause of his shrinking in the first film.
Red Star (new) → Flying Mario	From Super Mario Galaxy, granting flight. Mario uses one to rescue Bowser Jr. after the Ruined Dragon devours him.
Penguin Suit (new) → Penguin Toad	From New Super Mario Bros. Wii, allowing faster swimming, belly-sliding, and ice balls. Toad wears it to help Peach drive back the Ninji swarm.
Ice Flower → Ice Mario	From New Super Mario Bros. Wii, granting ice balls. While minding the kingdom, Mario takes this form and accidentally freezes Luigi during a fist-bump.
Cloud Flower (new) → Cloud Luigi	From Super Mario Galaxy 2, allowing the user to tread on clouds and lay down cloud platforms. Luigi uses one in the fight against Dry Bowser and Bowser Jr.
Blimp Fruit (new) → Blimp Yoshi	From Super Mario Galaxy 2, letting Yoshi inflate to rise or hover. He uses one in the fight against Dry Bowser and Bowser Jr.
Drill Mushroom (new) → Drill Mario	From Super Mario Bros. Wonder, allowing the user to bore underground. Mario uses one in the fight against Dry Bowser and Bowser Jr.

Transformations
Name			Description
Baby Luigi			An infant Luigi, looked after by Toad at Fossil Falls.
Baby Mario			An infant Mario, also in Toad's care at Fossil Falls.
Baby Toad (new)			Toad as an infant.
Wonder Bowser Jr. (new)			A form Bowser Jr. originally takes in Super Mario Bros. Wonder; here he triggers it with paint from his magic brush rather than Castle Bowser's Wonder power.