The screenshot shows Kirby holding a hammer, prompting Sakurai to post the following message on Miiverse: "Isn't Kirby drawn with a familiar artsy style?"
However, it is the background that has intrigued Smash Bros fans, with many believing it shows the pink blob in space. Jesse posted: "The highlights and stars is very Mario Galaxy!"
Waver wrote: "My hunch is Super Mario Galaxy. The characters are quite shiny in that game. Similar to how Kirby looks here."
Kostaras added: "The sky in this picture looks like the Super Mario Galaxy sky.Just compare them and you'll see what I mean."
Okay, we will...
What do you think?