Mickey Mouse the Spy, a video game idea that never happened

From silincoera.com

Before Mickey Mouse entered Cartoon Wasteland to go on his adventures in the video game Epic Mickey, Disney had been mulling over various video game concepts, including one in which Mickey was a spy, according to silinconera.com.

The then Buena Vista Games (now Disney Interactive) had a slew of ideas. The Mickey Spy included Donald with something that looks like a Duckmobile. There was also a game in which various characters fight each other and another game based on the 1991 Disney film "The Rocketeer."

All of this comes from concept art released by a Buena Vista Games artists. Silinconera.com has more of a complete gallery of photos on its website.