Sissy’s Magical Ponycorn Adventure is an eye-bleedingly adorable adventure game designed by a five year old girl named Cassie during the Toronto TOJam game-making event. Her father, game developer Ryan Creighton programmed the game in Flash using his Untold Graphic Adventure Game (UGAG) System.
Cassie drew all the pictures, wrote all the titles, and recorded the voice of the main character. She also came up with the NPCs (including Mr. Turtle, the Mean Tiger, and the villainous Lemon), and designed some of the puzzles (including the one where you [SPOILER ALERT] have to read a sign to justify your need for a coconut to throw at the Lemon).
via Waxy