Here is the full list of all 27 Alien Breed: Impact trophies - there are 8 bronze, 12 silver, 6 gold and 1 platinum.
Each and every trophy has been awarded. Congratulations!
Complete all single player levels 1-5.
Complete "Hydroponics" in Co-op Assault.
Finish any single player level without using an item.
Complete all single player levels 1-5 on elite difficulty.
Finish ‘Interface’ single player level without using health packs.
Finish a multiplayer level with no player losing a life.
Collect all logs through out the game.
Fire every weapon and use every item in single player.
Within 30 seconds kill 20 aliens in single player.
Find all ‘secret’ collectibles.
Without the player taking damage kill 50 aliens in single player.
Kill 25 aliens in single player.
Achieve a balance of 30000 credits or more.
Purchase the Damage upgrade for the Ion Spike.
In single player Story mode, destroy 50 alien eggs using melee.
Break the glass in a window (or witness another player doing this).
In single player Story mode, kill one of each type of alien.
Purchase an upgrade (or witness another player doing this).
In single player Story mode, save the game using the Intex Terminal.
In single player Story mode, sell 10000 credits worth of items or ammunition.
In single player Story mode, spend 30 minutes or more in the Intex Terminal menus.
Kill 5 aliens with one shot (or witness another player doing this).
Kill 10 aliens with one shot (or witness another player doing this).
Stun 5 aliens with one stun grenade (or witness another player doing this).
Stun 10 aliens with one stun grenade (or witness another player doing this).
In single player Story mode, take 500 damage without dying.