Comet Observatoryさんのイラストまとめ

Pictures sent to the Wii Message Board when completing Super Mario Galaxy 2 and by 100% the game respectively.

Some official background images from Super Mario Galaxy's Japanese website: https://t.co/XZ3Wybs2OH

Mario and Peach on the "Blooming Garden Planet". This picture is sent to the Wii Message Board once the players defeats Bowser for the third and final time in Super Mario Galaxy 2.

Mario has multiple unused animation files in Super Mario Galaxy, including punching and tackling moves like in Super Mario 64.

Super Mario Galaxy 2 has an unused flag reminiscent from the first game:

The sixth entry in the flag table "アイスマリオ初変身" is set when the player collects the Ice Flower for the first time. Since the Ice Flower has been removed from the game, the flag is never set.

Luma appears in artwork for Super Mario Kun, a Japanese-published Mario manga series.

In the mission "Hurry, He's Hungry" of the Sea Slide Galaxy (left), the last planet is very similar to Hurry-Scurry Galaxy (right), though all the notes are immediately available instead of them appearing as the player moves around the planet.

The Mario Hanafuda deck is a deck of Japanese playing cards known as Hanafuda. It was introduced during the 30th Anniversary of Super Mario Bros.

This card depicts Rosalina & Luma.

Rosalina's Nintendo Power card.

Super Mario Galaxy has a bunch of unused punching and tackling moves like in Super Mario 64.