Here is the full list of all 21 Rock of the Dead trophies - there are 21 bronze.
Aquire all badges on 4 levels. (Normal difficulty)
Finish the game and get the evil ending.
Complete any level taking no damage.
Obtain a score multiplier of 100.
Finish the game and get the good ending.
Defeat the Spider Boss.
Destroy the Transport Boss.
Aquire all badges on 2 levels. (Normal difficulty)
Defeat the Ant Lion Boss.
Fully upgrade your shield or blast attack.
Defeat the UFO Boss.
Defeat the Rat Boss.
Defeat the Crocodile Boss.
Complete 20 Challenges.
Complete 10 Challenges.
Complete a level with 100% accuracy.
Defeat the Trailersaurus Boss.
Unlock all extras.
Aquire all badges on all levels. (Normal difficulty)
Aquire all badges on all levels. (Hard difficulty)
Aquire all badges on all levels. (Thrasher difficulty)