Full list of all 12 Earthworm Jim HD achievements worth 200 gamerscore. It takes around 8-10 hours to unlock all of the achievements on Xbox 360.
Collect 100 atoms (without exiting the game)
Kill Billy the Bin in New Junk City
Launch the cow in New Junk City
Collect 500 atoms (without exiting the game)
Be "No.1" in each Xbox LIVE multiplayer level
Use the whip to swing from any moose head in Single Player mode
Get through Single Player mode in Original difficulty in one sitting in under 50 minutes
Whip the banker twice in What The Heck?
Collect more than 100 Blue Orbs (without exiting the game)
Collect more than 300 Blue Orbs (without exiting the game)
Clear Single Player mode in Original difficulty in one sitting without losing a life
Complete all the Xbox LIVE multiplayer game levels