Unlock the following cheats by performing the corresponding tasks:
CHEAT FUNCTION - HOW TO UNLOCK BALLSOFFIRE - Complete the Predator level, Fury 161, with 40 Alien kills. This cheat makes your enemies always on fire. GRENADE - Complete the Marine level, Colony, with 40% percent accuracy. This cheat stocks your Pulse Rifle with 99 grenades. IMPOSSIBLEMISSION - Complete the Alien bonus level with 20 live Marine head bites. This cheat causes you to take more damage. JOHNWOOMODE - Complete the Marine level, Derelict, with 80% head shots. This cheat slows the game when you attack or are attacked. LANDOFTHEGIANTS - Complete the Marine level, Orbital, using less than 20 shots. This cheat makes you very small MIRROR - Complete the Alien level, Earthbound, with one live Predator head bite. This cheat mirrors the level display. MOTIONBLUR - Complete the Alien level, Gateway, in under 4.5 minutes with an average speed of 9 m/s or better. This cheat makes the screen blurry. NAUSEA - Complete the Alien level, Escape, in less than two minutes. This cheat shakes and moves the screen. PIGSTICKING - Complete the Predator level, Waterfall, with 80% accuracy. This cheat gives the Predator's Spear gun unlimited ammo and multi-fire. PIPECLEANER - Complete the Alien level, Ferarco, with 15 dead civilian head bites. This cheat shows all characters as pipe cleaners. SLUGTRAIL - Complete the Marine level, Tyrargo, with 32 Alien kills. This cheat causes all Aliens to have no legs. SNIPERMUNCH - Complete the Alien level, Temple, with 10 live civilian head bites. This cheat gives Aliens a long distance jaw attack. TICKERTAPE - Complete the Predator bonus level, Invasion, with 15 alien trophies. This cheat causes Aliens to have a trail following them. TRIPTASTIC - Complete the Predator bonus level, Escape, with 10 civilian trophies. This cheat causes the screen to become blurry, jittery, and rainbow-colored. WARPSPEED - Complete the Marine level, Orbital, using less than 20 shots. This cheat allows you to run very fast.