Here is the full list of all 18 Where Are My Friends? (EU) trophies - there are 2 bronze, 7 silver, 8 gold and 1 platinum.
Complete Bunker-level
Use teleport on a choose-level-location
Use reel on a choose-level-location
Use telescope on a spaceship
Assemble the part in the laboratory on a spaceship
Use the library on a spaceship
Hidden meaning...
Press first button after start of new game
Good job! Completed all tasks!
Collect all coins in Jungle-level
Complete Bunker-level without dying
Complete Jungle-level without dying
Complete Cave-level without dying
Thanks for playing <3
Complete Jungle-level
Complete Tower-level
Complete Cave-level
Complete the Tower-level without any items in the inventory