Quirk (planet)
Quirk is a large, crimson planet from The Super Mario Bros. Super Show! episode "Stars in Their Eyes / Alligator Dundee".
From what was seen of Quirk in "Stars in Their Eyes / Alligator Dundee", it is a very desolate world, with no plant life seen on it, only red deserts. Several rivers are also found on Quirk, the water of which, is orange. The gravity of Quirk is also much lighter than the gravity of Mushroom World, as, without something to help weight them down, Mario, Luigi, Toad and Princess Toadstool were shown to float upwards upon stepping on the surface of Quirk.
The rocks of Quirk may also be valuable on some level, as Moon Man Koopa and Astro Mouser are shown to mine them in "Stars in Their Eyes / Alligator Dundee", though for what reason, is unknown.
Only one native species of creature is shown to inhabit Quirk, the Quirks, small, green humanoids with trumpet-like noses jutting from their faces.