View Credits option
 
 Successfully complete story mode on the easy difficulty setting to
 unlock a "View Credits" option on the main character selection screen.
 
 1935 Tomb story level reward
 
 Successfully complete the 1935 Tomb level in story mode on the easy
 difficulty setting to unlock Cultist as a playable character in
 arcade mode. Completed the level in under 1 minute to also unlock the
 Paintball mode cheat. Complete the level on the normal difficulty
 setting to unlock the Graveyard level in arcade mode. Complete the
 level on the hard difficulty setting to unlock Eyes Mummy as a
 playable character in arcade mode. 
 
 1970 Chinese story level reward
 
 Successfully complete the 1970 Chinese level in story mode on the easy
 difficulty setting to unlock Chinese Chef as a playable character in
 arcade mode. Complete the level on the normal difficulty setting to
 unlock the Site level in arcade mode. Complete the level on the hard
 difficulty setting to unlock Suit Hoodlum as a playable character in
 arcade mode. 
 
 2005 Cyberden story level reward
 
 Successfully complete the 2005 Cyberden level in story mode on the
 easy difficulty setting to unlock the 1950 Village, 1985 Chemical
 Plant, and 2020 Planet X levels in story mode; Dr Seth Graven. Dr
 Kate Nadir, Fingers McKenzie, Ravelle Velvet, Sebastian Photon, Angel
 Perez, and Badass Cyborg as playable characters in arcade mode; and
 Badass Cyborg, Siamese Cyborg, and Female Cyborg as Bots in arcade
 mode. Complete the level on the normal difficulty setting to unlock
 the Streets level in arcade mode. 
 
 1950 Village story level reward
 
 Successfully complete the 1950 Village level in story mode on the easy
 difficulty setting to unlock the 1950 Village level in arcade mode;
 and "Period Horror" as a Bot Set in arcade mode. Complete the level
 on the normal difficulty setting to unlock the Castle level in arcade
 mode. 
 
 1985 Chemical story Plant level reward
 
 Successfully complete the 1985 Chemical Plant level in story mode on
 the easy difficulty setting to unlock the 1985 Chemical Plant level
 in arcade mode; "Usual Suspects" as a Bot Set in arcade mode; and
 Lumberjack, Malehood, and Waiter as Bots in arcade mode. Complete the
 level on the normal difficulty setting to unlock the Bank level in
 arcade mode. 
 
 2020 Planet X story level reward
 
 Successfully complete the 2020 Planet X level in story mode on the
 easy difficulty setting to unlock the 1965 Mansion, 2000 Docks, and
 2035 Spaceways levels in story mode; 2020 Planet X level in arcade
 mode; Peekabo Jones, Mary-Beth Casey, Jacques Misere, Olga Strom,
 R108, and Gretel as playable characters in arcade mode; "Space Opera"
 as a Bot Set in arcade mode; and Tuxedo Cyborg, Red Alien, and Green
 Alien as Bots in arcade mode. Complete the level on the normal
 difficulty setting to unlock the Spaceship level in arcade mode.
 
 1965 Mansion story level reward
 
 Successfully complete the 1965 Mansion level in story mode on the easy
 difficulty setting to unlock the 1965 Mansion level in arcade mode;
 "Horror Shocker" as a Bot Set in arcade mode; and Fishwife Mutant,
 Hick Hyde, Insect Mutant, Overall Mutant, Police Zombie, Girl Zombie,
 Skull Zombie, and Jacket Zombie as Bots in arcade mode. Note: Set
 "Auto Aim" to toggle, leave it on, and crouch to get easier head
 shots to complete this level easier. Complete the level on the normal
 difficulty setting to unlock the Mall level in arcade mode. 
 
 2000 Docks story level reward
 
 Successfully complete the 2000 Docks level in story mode on the easy
 difficulty setting to unlock the 2000 Docks level in arcade mode;
 "Law and Order" as a Bot Set in arcade mode; and Male Soldier, Female
 Soldier, Gasmask Soldier, Male SWAT, Female SWAT, and Gasmask SWAT as
 Bots in arcade mode. Note: There are a lot of snipers in high perches
 by the waterfront, so be alert in this level. Complete the level on
 the normal difficulty setting to unlock the Compound level in arcade
 mode. 
 
 2035 Spaceways story level reward
 
 Successfully complete the 2035 Spaceways level in story mode on the
 easy difficulty setting to unlock the 2035 Spaceways level and "Space
 Opera" as a Bot Set in arcade mode. Complete the level on the normal
 difficulty setting to unlock the Warzone level in arcade mode.
 
 Challenge mode
 
 Successfully complete story mode to unlock challenge mode, which
 allows you to compete in different challenging situations.
 
 Challenge 1-A Behead the Undead level reward
 
 Successfully complete all challenges to unlock "The Living Dead" as a
 Bot Set in arcade mode and the Challenge 1-B Putrid Punchout level.
 
 Challenge 1-B Putrid Punchout level reward
 
 Successfully complete all challenges to unlock Green Zombie and Brown
 Zombie as playable characters in arcade mode and the Challenge 1-C
 Dusk Of The Dead level. 
 
 Challenge 1-C Dusk Of The Dead level reward
 
 Successfully complete all challenges to unlock Police Zombie, Skull
 Zombie, and Jacket Zombie as playable characters in arcade mode and
 the Challenge 2-A Flock Around The Dock level.
 
 Challenge 2-A Flock Around The Dock level reward
 
 Successfully complete all challenges to unlock Duckman Drake as a Bot
 in arcade mode and the Challenge 2-B Pro Am Duck Shoot level.
 
 Challenge 2-B Pro Am Duck Shoot level reward
 
 Successfully complete all challenges to unlock the "All Enemies Are
 Ducks" cheat and the Challenge 2-C Crispy Duck level.
 
 Challenge 2-C Crispy Duck level reward
 
 Successfully complete all challenges to unlock Duckman Drake as a
 playable character in arcade mode and the Challenge 3-A Tin Man level.
 
 Challenge 3-A Tin Man level reward
 
 Successfully complete all challenges to unlock Robofish as Bot in
 arcade mode and the Challenge 3-B Lobster Run level.
 
 Challenge 3-B Lobster Run level reward
 
 Successfully complete all challenges to unlock the "All Enemies Are
 Robofish" cheat and the Challenge 3-C Bowl Them Over level.
 
 Challenge 3-C Bowl Them Over level reward
 
 Successfully complete all challenges to unlock Robofish as a playable
 character in arcade mode and the Challenge 4-A Shame If Something Got
 Broken level. 
 
 Challenge 4-A Shame If Something Got Broken level reward
 
 Successfully complete all challenges to unlock the Challenge 4-B
 Don't Wait Around level.
 
 Challenge 4-B Don't Wait Around level reward
 
 Successfully complete all challenges to unlock the "Enemy Bricks"
 cheat and the Challenge 4-C Brick Flung High level.
 
 Challenge 4-C Brick Flung High level reward
 
 Successfully complete all challenges to unlock the brick as a weapon
 in arcade mode and the Challenge 5-A First Impressions level.
 
 Challenge 5-A First Impressions level reward
 
 Successfully complete all challenges to unlock The Impersonator as
 Bot in arcade mode and the Challenge 5-B Lasting Impressions level.
 
 Challenge 5-B Lasting Impressions level reward
 
 Successfully complete all challenges to unlock the "All Enemies Are
 Impersonators" cheat and the Challenge 5-C Who's he Trying to
 Impress? level. 
 
 Challenge 5-C Who's he Trying to Impress? level reward
 
 Successfully complete all challenges to unlock The Impersonator as a
 playable character in arcade mode and the Challenge 6-A Barrel Blast
 level. 
 
 Challenge 6-A Barrel Blast level reward
 
 Successfully complete all challenges to unlock the Challenge 6-B
 Bodyguard level.
 
 Challenge 6-B Bodyguard level reward
 
 Successfully complete all challenges to unlock Gasmask SWAT as
 playable character in arcade mode and the Challenge 6-C Heist level.
 
 Challenge 6-C Heist level reward
 
 Successfully complete all challenges to unlock Veiled SWAT as a Bot
 and playable character in arcade mode and the Challenge 7-A Shop 'Til
 You Drop level.
 
 Challenge 7-A Shop 'Til You Drop level reward
 
 Successfully complete all challenges to unlock Ginger as a Bot in
 arcade mode and the Challenge 7-B Sorry, Was That Your Bag? level.
 
 Challenge 7-B Sorry, Was That Your Bag? level reward
 
 Successfully complete all challenges to unlock "All Enemies Are
 Gingerbreads" cheat and the Challenge 7-C Everyone Must Go! level.
 
 Challenge 7-C Everyone Must Go! level reward
 
 Successfully complete all challenges to unlock Gingerbead as a
 playable character in arcade mode and the Challenge 8-A Girls 'n'
 Boys level. 
 
 Challenge 8-A Girls 'n' Boys level reward
 
 Successfully complete all challenges to unlock Fun-Bunny as a Bot in
 arcade mode and the Challenge 8-B Dinner Dates level.
 
 Challenge 8-B Dinner Dates level reward
 
 Successfully complete all challenges to unlock the "All Enemies Are
 Bunnies" cheat and the Challenge 8-C Bone Grab level.
 
 Challenge 8-C Bone Grab level reward
 
 Successfully complete all challenges to unlock Farrah Fun-Bunny as a
 playable character in arcade mode and the Challenge 9-A I Can't Hear
 Anyone Screaming level.
 
 Challenge 9-A I Can't Hear Anyone Screaming level reward
 
 Successfully complete all challenges to unlock TimeSplitters as a Bot
 Set in arcade mode; TimeSplitter, and TimeSplitter (Same name,
 different character) as bots in arcade mode; and the Challenge 9-B
 Flight Delay level. 
 
 Challenge 9-B Flight Delay level reward
 
 Successfully complete all challenges to unlock TimeSplitter as a
 playable character in arcade mode.
 
 Game Shark Codez:
 
 
 Master Code (Must Be On) 
 ECB78420 1456E79B
 
 Invincible
 1CADA668 1456E7A6
 
 Invisible
 1CADA66C 1456E7A6