1935 Tomb story level reward:
Successfully complete the 1935 Tomb level in story mode under the easy
difficulty setting to unlock Cultist as a playable character in arcade mode.
Complete the level under the normal difficulty setting to unlock the Graveyard
level in arcade mode. Successfully complete the level under the hard difficulty
setting to unlock Eyes Mummy as playable character in arcade mode.
1970 Chinese story level reward:
Successfully complete the 1970 Chinese level in story mode under the easy
difficulty setting to unlock Chinese Chef as a playable character in arcade
mode. Complete the level under the normal difficulty setting to unlock the Site
level in arcade mode.
2005 Cyberden story level reward:
Successfully complete the 2005 Cyberden level in story mode under the easy
difficulty setting to unlock the 1950 Village, 1985 Chemical Plant, and 2020
Planet X as 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 under 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 under the easy
difficulty setting to unlock "Period Horror" as a Bot Set in arcade mode.
Complete the level under the normal difficulty setting to unlock the Castle
level in arcade mode.
1985 Chemical Plant story level reward:
Successfully complete the 1985 Chemical Plant level in story mode under the easy
difficulty setting to unlock "Usual Suspects" as a Bot Set in arcade mode; and
Lumberjack, Malehood, and Waiter as Bots in arcade mode. Complete the level
under 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 under the easy
difficulty setting to unlock 1965 Mansion, 2000 Docks, and 2035 Spaceways levels
in story 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 under the normal difficulty setting to unlock the
Spaceship level in arcade mode.
1965 Mansion story level reward:
Note: Set "Auto Aim" to toggle, leave it on, and crouch to get easier head shots
to complete this level easier. Successfully complete the 1965 Mansion level in
story mode under the easy difficulty setting to unlock "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 Successfully complete the level under the normal difficulty setting
to unlock Mall as an arcade mode level.
2000 Docks story level reward:
Note: There are a lot of snipers in high perches by the waterfront, so be alert
in this level. Successfully complete the 2000 Docks level in story mode under
the easy difficulty setting to unlock "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. Successfully complete the level under
the normal difficulty setting to unlock the Compound as an arcade mode level.
2035 Spaceways story level reward:
Successfully complete the 2035 Spaceways level in story mode under the easy
difficulty setting to unlock challenge mode and Space Opera as a bot set.
Complete the level under the normal difficulty setting to unlock the Warzone
level.
Challenge mode:
Successfully complete the game in story mode to unlock challenge mode, which
allows you to compete in different challenging situations. Complete all
challenges under a number to unlock a new challenge.
Challenge 1-A Behead the Undead level reward:
Complete all challenges to unlock "The Living Dead" as an Bot Set in arcade mode
and Challenge 1-B Putrid Punchout.
Challenge 1-B Putrid Punchout level reward:
Complete all challenges to unlock Green Zombie and Brown Zombie as playable
characters in arcade mode and Challenge 1-C Dusk of the Dead.
Challenge 1-C Dusk of the Dead level reward:
Complete all challenges to unlock Police Zombie, Skull Zombie, and Jacket Zombie
as playable characters in arcade mode and the next challenge.
Challenge 2-A Flock Around the Dock level reward:
Complete all challenges to unlock Duckman Drake as a Bot in arcade mode and
Challenge 2-B Pro Am Duck Shoot.
Challenge 2-B Pro Am Duck Shoot level reward:
Complete all challenges to unlock the "All Enemies Are Ducks" cheat and
Challenge 2-C Crispy Duck.
Challenge 2-C Crispy Duck level reward:
Complete all challenges to unlock Duckman Drake as a playable character in
arcade mode and the next challenge.
Challenge 3A Tin Man level reward:
Complete all challenges to unlock Robofish as Bot in arcade mode and Challenge
3B Lobster Run.
Challenge 3B Lobster Run level reward:
Complete all challenges to unlock the "All Enemies are Robofish" cheat and
Challenge 3C Bowl them Over.
Challenge 3C Bowl Them Over level reward:
Complete all challenges to unlock Robofish as a playable character in arcade
mode.
Challenge 4A Shame if Something Got Broken level reward:
Complete all challenges to unlock Challenge 4B Don't Wait Around.
Challenge 4B Don't Wait Around level reward:
Complete all challenges to unlock the "Enemy Bricks" cheat and Challenge 4C
Brick Flung High.
Challenge 4C Brick Flung High level reward:
Complete all challenges to unlock the brick as a weapon in arcade mode.
Challenge 5-A First Impressions level reward:
Complete all challenges to unlock The Impersonator as Bot in arcade mode and
Challenge 5-B Lasting Impressions.
Challenge 5-B Lasting Impressions level reward:
Complete all challenges to unlock the "All enemies Are Impersonators" cheat and
Challenge 5-C Who's he Trying to Impress?
Challenge 5-C Who's he Trying to Impress? level reward:
Complete all challenges to unlock The Impersonator as a playable character in
arcade mode and the next challenge.
Challenge 6-A Barrel Blast level reward:
Complete all challenges to unlock Challenge 6-B Bodyguard.
Challenge 6-B Bodyguard level reward:
Complete all challenges to unlock Gasmask SWAT as playable character in arcade
mode and Challenge 6-C Heist.
Challenge 6-C Heist level reward:
Complete all challenges to unlock Veiled SWAT as a Bot and playable character in
arcade mode and the next challenge.
Challenge 7-A Shop 'til you Drop level reward:
Complete all challenges to unlock Ginger as a Bot in arcade mode and Challenge
7-B Sorry, Was That Your Bag?
Challenge 7-B Sorry, Was That Your Bag? level reward:
Complete all challenges to unlock "All Enemies are Gingerbreads" cheat and
Challenge 7-C Everyone Must Go!
Challenge 7-C Everyone Must Go! level reward:
Complete all challenges to unlock Gingerbead as a playable character in arcade
mode.
Challenge 8-A Girls 'n' Boys level reward:
Complete all challenges to unlock Fun-Bunny as a Bot in arcade mode and
Challenge 8-B Dinner Dates.
Challenge 8-B Dinner Dates level reward:
Complete all challenges to unlock the "All Enemies are Bunnies" cheat and
Challenge 8-C Bone Grab.
Challenge 8-C Bone Grab level reward:
Complete all challenges to unlock Farrah Fun-Bunny as a playable character in
arcade mode.
Glitch: Sitting ducks:
Play an arcade level with the weapon set to custom 1 (no weapons selected) and
have "Start with weapon" enabled. When you start the level, the CPU players will
not move and will be sitting ducks for you. This is a perfect chance to achieve
100% accuracy and head shots.
Glitch: Headless allies:
Play a regular arcade game of Capture The Bag or Deathmatch and turn "Friendly
Fire Damage" off. Set the players you want on your team to be either zombies or
mutants. When game play begins, find one of your teammates and shoot at their
head. It should go flying, but they should still be able to move around and
shoot, because you cannot damage them. Note: Your allies must be controlled by
the CPU.
