Here's a crossover that has been attempted a few times over the years! Hopefully this one can pull it off. A new sonic meets My Little Pony crossover is in the works, with a demo dropping today.
You can find the full press release as well as a traile for it below, or just go dive in blind and download it on Gamejolt.
STORY
The mad scientist, Dr. Ivo 'Eggman' Robotnik, has concocted a new evil scheme in order to bring his dream of the Eggman Empire into reality. Using an ancient spell created by the great Star Swirl the Bearded, that allows for travel through dimensions, Eggman transports himself to the magical kingdom of Equestria and begins his attempts of conquering the peaceful land and enslaving its inhabitants. Sonic and friends, along with the Chaos Emeralds, are unintentionally pulled into the mix when investigating one of Eggman's abandoned bases. Upon arriving in Equestria, Sonic learns that Eggman has set his sights on harnessing the power of six of this world's most powerful artifacts, the Elements of Harmony, to assist in his tyrannical takeover. However, the bearer of the Element of Magic, Twilight Sparkle, manages to use a spell to scatter the elements all across Equestria in order to keep them out of the doctor's hands. Now, with the help of Twilight and her friends, it is up to Sonic to retrieve the Elements of Harmony and the Chaos Emeralds to send Eggman, and his mysterious new ally, packing once again!GAMEPLAY
Sonic the Hedgehog
Sonic's playstyle is exactly similar to the boost to win series such as Sonic Unleashed, Sonic Colors, and Sonic Generations. When he does his homing ability without targeting an enemy, he has momentum. The blue blur can not only land in the air but can also do tricks similar to Sonic Advance 2.
Twilight Sparkle
Princess Twilight Sparkle, who used to be a unicorn, now as the Princess of Friendship has the advantage to use her magical abilities to boost and shoot sparks. Twilight can also fly with her wings to reach the heights. Her Magic Spark can be charged by holding the D button, as long as the Magic meter is high.