FIRST BLOOD
MAKE YOUR FIRST KILL

ASSAULT
KILL 10 ALIENS

WARMING UP
KILL 100 ALIENS

RIPLEY
FLAME 1000 ALIENS

SECONDS OUT
REACH AN EXIT DECK LIFT WITH 1 SECOND REMAINING

NEVER GET IT BACK
WATCH THE ALIEN BREED PROLOGUE

SCAVENGER
COLLECT EVERY PICKUP ON A LEVEL

RUN, STONE RUN!
COMPLETE ALIEN BREED LEVEL 2 WITHOUT FIRING YOUR WEAPON

LOCKED AND LOADED
PURCHASE ALL WEAPONS FROM THE SHOP

WHO'S THE BOSS?
DEFEAT A BOSS WITHOUT FIRING THE ASSAULT RIFLE

YOU'RE ONLY SUPPOSED TO BLOW THE BL**DY DOORS OFF
COMPLETE A LEVEL USING NO KEYS

THERE'S NO I IN TEAM
COMPLETE A LEVEL IN CO-OP

HE SHOOTS, HE SCORES
SCORE 1,000,000 CO-OP POINTS ON A LEVEL

ISR4-C
COMPLETE 17 CO-OP GAMES

SAVING AMMO
KILL 2 ALIENS WITH ONE SHOT

SMASHING
DIE TOGETHER IN THE MASHERS ON CONVERGENCE LEVEL 4

ROXANNE
KILL 50 ALIENS DURING A COUNTDOWN

BURN, BABY BURN
DEFEAT A BOSS ALIEN TOGETHER WITH FLAMETHROWERS

TREAD CAREFULLY
COMPLETE ALIEN BREED SE LEVEL 11 IN CO-OP WITHOUT TRIPPING THE ALARM

TEAMSTER
SCORE 17,171,717 POINTS TOTAL SINGLE OR CO-OP PLAY

HARD AS NAILS
COMPLETE ALIEN BREED