Here is the full list of all 12 Ugly Americans: Apocalypsegeddon trophies - there are 7 bronze, 4 silver and 1 gold.
Complete the game in an online multiplayer session.
Resuscitate 50 allies.
Collect all the projectiles.
Complete all levels without using special attacks.
Kill 5000 Demons.
Complete the game using any character.
Locate and collect all of the Demon Babies.
Kill 1000 Manbirds.
Use any special attack 100 times.
Kill 300 Zombies.
Rack up a 20 score multiplier.
Defeat 50 enemies in a row without getting hit.