Cheats for Monster Madness: Battle for Suburbia

Andy's Surfing Costume	Receive a Grade (any grade) on Every Level on Child's Play Difficulty
Carrie's Ninja Costume	Obtain all Level 3 Weapons for Carrie
Carrie's Valley Girl Costume	Receive any grade on every level on Horror Difficulty
Jennifer's Nurse Costume	Upgrade all of Jennifer's Weapons to Level 3.
Zack's Deathgame Costume	Receive any grade on every level on Thriller Difficulty

In the cheats menu...

Animal Sounds	patrickdugan
Arrows show where weapon parts are	WeaponPartTesting
Blurry creen affect	Spielberg
Disable special tracking cameras	ihatefunkycameras
empty fired shells stay in the air	GearsFTW
Everyone has low pitch voices	TalkDirtyToMe
Everything is BLue and orange	TitleTown
Everything is red	NotQuiteTitleTown
everything is reversed	MirrorMirror
everything is White	TokenInverse
Faster Music	upthejoltcola
First Person/Headless	MorgyTheMole
Increase the Size of Jennifer's Chest	ArieannDeFazioWithFlair
increased vehicle firepower	AndyGomez
Infinite Chainsaw	CliffyBFTW
Infinite Secondary Items	stevebrooks
infinite specialty melee attack	JenniferSweeney
Invincibility	TimSweeneyHealth13
Monsters explode when they die	Willy
Monsters have more health	Legendary
No monsters	UnrealEngine3
Push Objects Away from Player	SouthPeak
Remove Film Grain	reverb
Slow Motion	ZombiesHaveEatenMyNeighbors
Slow motion when you're hitting a monster	StreetFighter
Slower framerate	GimmeFramerate
Squeaky Voices	chipmunks
Super fast movement and firespeed	MonsterHunter
Super Jump	Armstrong
upside down screen	TopsyTurvy