Every hundred years, a huge comet flies by in the skies the Mushroom Kingdom. One year, that comet filled the entire sky, and from it fell a stream of shooting stars. The Toads, Koopas, Shy Guys, and Goombas scooped up the Star Bits and brought them to castle, where they were reborn as a great Power Star. It was a happy time at the Mushroom Kingdom. Then one night Mario, Luigi, Sonic, Shadow, Silver, Sonia, Manic, Tails, Knuckles, Metaru, Team RWBY, Team JNPR, and Team AMEN received a letter from Peach Toadstool, Bowser Koopa, Doctor Robotnik, Salem and Ozpin. With the invitation in hand, they headed off to the castle just as the Star Festival was getting into full swing. Surrounded by Toads, Koopas, Shy Guys, and Goombas gleefully trying to catch falling Star Bits, they were looking forward to the night's festivities. But then something happened...
I don't own any of the characters.
Super Mario Galaxy, Mario, Luigi, Lumas, Rosalina, Bowser Koopa, Peach Toadstool, Koopalings, Dark Bowser, and Koopa Troop belong to Nintendo.
Sonic Colors, Sonic Lost World, Wisps, Doctor Robotnik, Metal Sonic, Sonic, Shadow, Silver, Sonia, Manic, Tails, Knuckles, Amy Rose, and Metallix belong to Sega.
RWBY belongs to Rooster Teeth Production.