Here is the full list of all 21 Grass Cutter (EU) trophies - there are 4 bronze, 8 silver, 8 gold and 1 platinum.
Good job! Completed all tasks!
25 times, purchase 15% of the energy
Drive by 10 times on the sand
Face the monsters 50 times
Break 100 barriers
Disable 50 monsters
Scare the cats 15 times
Eliminate multiple monsters in less than 1 second
Take a mud bath 20 times
Scare the dogs 20 times
Use a bomb
Eliminate robot
Eliminate quadcopter
Make the first purchase
Get wet in the rain
Gather up energy when there is less than 5% left
Scare the birds 50 times
Immerse the first box
Cut 1000 squares with grass
Dive into the water 20 times
Complete the first level