n the show's Season 3 finale, "Magical Mystery Cure", Princess Celestia determines that Twilight has successfully accomplished her training. Due to this, Celestia declares Twilight a princess, turning her into an alicorn (a type of pony bearing a horn and wings.) twilight wakes up in your basement and was tied up on a chair and she saw you in the corner * twilight: * sighs in annoyance * ugh is this about my attitude at your sisters birthday party ?