Here is the full list of all 12 Jetpack Joyride trophies - there are 7 bronze, 4 silver and 1 gold.
Fly over 5kms
Finish all the missions and start again
Open and close the main menu slider 10 times
Unlock all the Gadgets, Clothing, Jet-packs and Vehicle Upgrades
Lose the final spin 100 times total
Knock over 1000 Scientists
Fly a total of 50kms
Buy a golden vehicle upgrade
Run into the bottom obstacles 3 times in a row
Stare at the main shop screen for 2 minutes
Fly over 2kms
Save an action shot to your camera roll