Happy 15th Anniversary to Super Mario Bros. Z. The series is one of inspirations for my sprite animation series "Sonic the Hedgehog, Sailor Moon and Freedom Planet: Worlds Unite" and my upcoming Dragon Ball, Sailor Moon, Mario and Sonic crossover fan film.

Mario, Luigi and Yoshi (Mario Party Advance) sprites ripped by QuadFactor.
Sonic the Hedgehog (Sonic Advance 3) sprites ripped by Ren "Fox" Ramos.
Shadow the Hedgehog sprites (Sonic Advance style) by shadow333.
Mario & Luigi's house background (Mario & Luigi: Superstar Saga) ripped by A.J.Nitro.

Mario, Luigi and Yoshi are owned by Nintendo.
Sonic the Hedgehog and Shadow the Hedgehog are owned by Sega.
Super Mario Bros. Z is owned by

https://www.deviantart.com/mega-shonen-one-64/art/Super-Mario-Bros-Z-15th-Anniversary-877182368