Oswald the Lucky Rabbit time, Felix the Cat and Krazy Kat. Universal was given the right to name the rabbit and it selected a name out of a hat. The first Oswald cartoon, "Poor Papa", was rejected by the Universal studio heads for its poor production quality and the sloppiness and age of Oswald. Disney, together with Iwerks, decided to create a second cartoon titled "Trolley Troubles" featuring a much younger, neater Oswald. The short, released on September 5, 1927, officially launched the series and proved to be Disney's greatest success to date. The storyline for Poor Papa was reused in a Mickey Mouse
Oswald the Lucky Rabbit Universal Studios wanted to get into the cartoon business and needed a cartoon character of its own. So Disney's distributor Charles Mintz told Disney and Iwerks to create a new character they could sell to Universal. Wanting to make cartoons with an all-animated look, Disney signed a contract with Universal Studios leading to the creation of Oswald the Lucky Rabbit and Universal's first cartoon series. Work on both the character and series began soon after Disney moved his studio to Hyperion Avenue. Disney chose to make the character a rabbit since there were already two popular animated cats at the