Here is the full list of all 17 RETSNOM trophies - there are 13 bronze and 4 silver.
Complete the game
Collect 74 rabbit dolls
Clear world5 with all rabbit dolls
Clear world5
Clear world4 with all rabbit dolls
Clear world3 with all rabbit dolls
Clear 3 hidden stages
Clear world2 with all rabbit dolls
Clear world1 with all rabbit dolls
Clear the 51st level
Clear world4
Clear world3
Clear world2
Kill the zombie in level 0
Kill 100 zombies
Die 100 times
Clear world1