Unexpected Development

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Unexpected Development logo

Unexpected Development, Inc. was a small San Francisco-based development house started by Cary Hammer that mostly worked on handheld games. [1] It operated from 1992 to 1997. [2]

Hammer died on January 15, 2020. [3]

Research Methods: Actual mentions, online resources

Related Interviews: David Brickhill


  • Battlesport (US Publisher: Acclaim)

Game Boy

  • Beethoven: The Ultimate Canine Caper (EU Publisher: Hi Tech Entertainment)
  • The Getaway: High Speed II (US Publisher: Williams)
  • Home Alone 2: Kevin's Dream (unreleased) (THQ) / Bobby's World (unreleased) (Hi Tech Entertainment)
The Home Alone 2 game was later turned into a Bobby's World game.
  • PGA European Tour (US/EU Publisher: Malibu Games)
  • PGA Tour 96 (US/EU Publisher: Black Pearl)
  • RoboCop Versus The Terminator (US Publisher: Interplay)
  • SeaQuest DSV (US Publisher: Malibu Games)
  • Shaq-Fu (US Publisher: Black Pearl)
  • Spider-Man/X-Men: Arcade's Revenge (US Publisher: LJN)
  • Sports Illustrated Golf Classic / Golf Classic (US/EU Publisher: Malibu Games)
  • Winter Olympic Games: Lillehammer '94 / Winter Gold (US/EU Publisher: U.S. Gold)

Game Gear

  • Beethoven: The Ultimate Canine Caper (unreleased) (Hi Tech Expressions [4]) [5]
  • The Getaway: High Speed II (unreleased) (Williams)
  • Jungle Strike (US Publisher: Black Pearl)
  • Phantom 2040 (US/EU Publisher: Viacom New Media)
  • Sports Illustrated Championship Football & Baseball (US Publisher: Black Pearl)


  • Battlesport (US/EU Publisher: Acclaim)


  • Battlesport (US Publisher: Acclaim)