Zombies Ate My Neighbors.
 No.  Code  Effect
   1  BF2T-AABJ  Start with 10 lives
   2  A32T-AABJ  Start with 7 lives
   3  AB2T-AABJ  Start with 1 life
   4  A47A-AA6W  Infinite lives
   5  GK2T-AAB4  Start with 50 shots in starting weapon
   6  NV2T-AAB4  Start with 100 shots in starting weapon
   7  8V2T-ACB4  Start with 500 shots in starting weapon
   8  TV2T-AGB4  Start with 900 shots in starting weapon
   9  JK2T-AAB6  Start with soda pop cans instead of squirt guns
For Codes 10 Thru 19, Hold down "A" and press "B" to use new weapon.
 10  JB2T-AAB6  Start with bazookas
 11  JV2T-AAB6  Start with tomatoes
 12  HB2T-AAB6  Start with fire extinguishers
 13  J32T-AAB6  Start with ice pops
 14  HK2T-AAB6  Start with martian bubble guns
 15  HV2T-AAB6  Start with weed-eaters
 16  H32T-AAB6  Start with ancient artifacts
 17  KK2T-AAB6  Start with plates
 18  KV2T-AAB6  Start with silverware
 19  K32T-AAB6  Start with footballs
 20  AMWA-AA88    Infinite weapons once you have at least 1
 21  LK2T-AACJ  Start with speed shoes instead of a first aid kit
For Codes 22 Thru 27, Hold down "A" and press "C" to use new weapon.
 22  LV2T-AACJ  Start with a monster potion
 23  L32T-AACJ  Start with a ghost potion
 24  MB2T-AACJ  Start with a random potion
 25  NB2T-AACJ  Start with a pandora's box
 26  NK2T-AACJ  Start with a skeleton key
 27  NV2T-AACJ  Start with a decoy
 28  DDXT-AA2G  Infinite special items once you have at least 1--EXCEPT KEYS  
 29  AZ2T-AAA6  Start with 1/2 health
 30  A1ET-AAHL  Continue with 1/2 health
 31  AL8T-AA3G  Almost infinite health
 32  BF2T-AACG  Start with 9 first aid kits instead of 1
 33  AMVA-AA4G  Infinite keys once you have at least one
 34  694T-AGFL  Package of squirt guns worth 999
 35  NS4T-AAF0  Package of soda pop cans worth 99
 36  NS4T-AAFN  Fire extinguishers worth 99 on pick up
 37  BH5A-AAAR  Each key worth 9 on pick up
 38  AK0A-AAB2  Start on level 2
 39  AP0A-AAB2  Start on level 3
 40  AV0A-AAB2  Start on level 4
 41  AZ0A-AAB2  Start on level 5
 42  A30A-AAB2  Start on level 6
 43  A70A-AAB2  Start on level 7
 44  BB0A-AAB2  Start on level 8
 45  BF0A-AAB2  Start on level 9
 46  BK0A-AAB2  Start on level 10
 47  BP0A-AAB2  Start on level 11
 48  BV0A-AAB2  Start on level 12
 49  BZ0A-AAB2  Start on level 13
 50  B30A-AAB2  Start on level 14
 51  B70A-AAB2  Start on Level 15
 52  CB0A-AAB2  Start on Level 16
 53  CF0A-AAB2  Start on Level 17
 54  CK0A-AAB2  Start on Level 18
 55  CP0A-AAB2  Start on Level 19
 56  CV0A-AAB2  Start on Level 20
 57  CZ0A-AAB2  Start on Level 21
 58  C30A-AAB2  Start on Level 22
 59  C70A-AAB2  Start on Level 23
 60  DB0A-AAB2  Start on Level 24
 61  DF0A-AAB2  Start on Level 25
 62  DK0A-AAB2  Start on Level 26
 63  DP0A-AAB2  Start on Level 27
 64  DV0A-AAB2  Start on Level 28
 65  DZ0A-AAB2  Start on Level 29
 66  D30A-AAB2  Start on Level 30
 67  D70A-AAB2  Start on Level 31
 68  EB0A-AAB2  Start on Level 32
 69  EF0A-AAB2  Start on Level 33
 70  EK0A-AAB2  Start on Level 34
 71  EP0A-AAB2  Start on Level 35
 72  EV0A-AAB2  Start on Level 36
 73  EZ0A-AAB2 Start on Level 37
 74  E30A-AAB2  Start on Level 38
 75  E70A-AAB2  Start on Level 39
 76  FB0A-AAB2  Start on Level 40
 77  FF0A-AAB2  Start on Level 41
 78  FK0A-AAB2  Start on Level 42
 79  FP0A-AAB2  Start on Level 43
 80  FV0A-AAB2  Start on Level 44
 81  FZ0A-AAB2  Start on Level 45
 82  F30A-AAB2  Start on Level 46
 83  F70A-AAB2  Start on Level 47
 84  GB0A-AAB2  Start on Level 48
 85  GK0A-AAB2  Start on Bonus Level Son of Dr. Tongue
 86  GP0A-AAB2  Start on Bonus Level Day of the Tentacle
 87  GV0A-AAB2  Start on Bonus Level Someplace Very Warm
 88  GZ0A-AAB2  Start on Bonus Level Curse of the Pharaohs
 89  G30A-AAB2  Start on Bonus Level Mushroom Men
 90  G70A-AAB2  Start on Bonus Level Cheerleaders vs the Monsters
 91  GF0A-AAB2  Start on Credit Level Monsters Among Us