| Trophy | How to unlock
|
|---|
| Assault (Bronze) | Kill 10 aliens.
|
| Burn, baby burn (Bronze) | Defeat a boss alien together with flamethrowers.
|
| First blood (Bronze) | Make your first kill.
|
| Hard as nails (Bronze) | Complete Alien Breed.
|
| He shoots, he scores (Bronze) | Score 1,000,000 co-op points on a level.
|
| ISR4-C (Bronze) | Complete 17 co-op games.
|
| Locked and loaded (Bronze) | Purchase all weapons from the shop.
|
| Never get it back (Bronze) | Watch the Alien Breed prologue.
|
| Ripley (Bronze) | Flame 1000 aliens.
|
| Roxanne (Bronze) | Kill 50 aliens during a countdown.
|
| Run, stone run! (Bronze) | Complete Alien Breed level 2 without firing your weapon.
|
| Saving ammo (Bronze) | Kill 2 aliens with one shot.
|
| Scavenger (Bronze) | Collect every pickup on a level.
|
| Seconds out (Bronze) | Reach an exit deck lift with 1 second remaining.
|
| Smashing (Bronze) | Die together in the mashers on Convergence level 4.
|
| Teamster (Bronze) | Score 17,171,717 points total single or co-op play.
|
| There's no I in team (Bronze) | Complete a level in co-op.
|
| Tread carefully (Bronze) | Complete Alien Breed SE level 11 in co-op without tripping the alarm.
|
| Warming up (Bronze) | Kill 100 aliens.
|
| Who's the boss? (Bronze) | Defeat a boss without firing the assault rifle.
|
| You're only supposed to blow the bloody doors off (Bronze) | Complete a level using no keys.
|