Super Mario Bros Action Replay Codes (World)
This page contains the Action Replay codes that I have available for Super Mario Bros (World), a game for the original NES (Nintendo Entertainment System). If you're playing on an emulator, you'll typically be able to put these codes into the program through a built in option. Anyone who is really old school and playing on a physical console will have to purchase a physical Action Replay device to use these codes.
When it comes to emulation for the NES you have 3 good options to choose from. You can do RetroArch, Nestopia or MesenCE, follow the links provided to learn more about how to use the codes you find on this page on the Emulator of your choice. If you don't see the code you want on this page, I recommend you return to my Super Mario Bros Guides Index and choose a different section.
Mario / Luigi Look Modification codes
SMB2 (J) Same Memory Address Codes
If You Keep Watching Mario.): AS YOU
Infinite Lives: 075A:03
Infinite Time: 07FA:09
Disable at the end of a level to advance past score tally
Always Running: 0783:0A
Climb Anywhere: 001D:03
You will always be climbing, if you move when turning the code on it won't disable scrolling.
Jump Through Blocks: 0754:02
Won't be able to get Power-ups since you jump through ? blocks
Super Jump: 0709:10
Walk Behind Scenery: 03C4:20
Walk In Water or Swim In Air: 0704:??
Alternate Level Modifier: 0760:??
01-23 are 1-1 - 8-4, increase further for crazy levels.
Always Underground BGM: 00f4:04
Always Castle BGM: 00f4:08
Always Overworld BGM: 00f4:01
Always Star BGM: 00f4:40
Coins, Question Mark Block flashing palette 1: 89C3:??:27
Coins, Question Mark Block flashing palette 2: 89C4:??:27
Coins, Question Mark Block flashing palette 3: 89C5:??:27
Coins, Question Mark Block flashing palette 4: 89C6:??:17
Coins, Question Mark Block flashing palette 5: 89C7:??:07
Coins, Question Mark Block flashing palette 6: 89C8:??:17
Scrolling Always Enabled: 0732:00
Use with Walk Through Walls or a jump code
Scrolling Always Enabled: 0723:00
Bonus rooms are connected
All Powerups Become ??: 0039:??
Boomerang Fireball: 03D2:00
Power-ups Give 1Ups: 0115:0B
Infinite Time: 0787:12
Clear Enemies: AASKPOZA
Flag Always Gives 5000 pts: 010F:00
More Enemis: AAKKLYPA
Sonic speed: B5F2:10
Suspended & Glide Through Mid-Air: 001D:00
Disable code when you want to return to the ground or when you reach a flag pole.
Danger Modifier: 06CB:??
Disable at the end of levels
(Danger Modifier) No Dangers: 06CB:00
(Danger Modifier) Koopas and Piranha Plants have no animation: 06CB:05
(Danger Modifier) Lakitu Attack: 06CB:12
(Danger Modifier) Always Flying Cheep Cheeps: 06CB:14
(Danger Modifier) Bowser Fire: 06CB:15
(Danger Modifier) Bullet Bills: 06CB:17
(Danger Modifier) Enemies transformed to Fire Sticks: 06CB:1F
Stage Type Modifier: 074E:0?
(Stage Type Modifier) Swimming (with swimming mechanics): 074E:00
(Stage Type Modifier) Above Ground: 074E:01
(Stage Type Modifier) Under Ground: 074E:02
(Stage Type Modifier) Castle: 074E:03
Mario Modifier: 0756:0?
(Mario Modifier) Little: 0756:00
(Mario Modifier) Big: 0756:01
(Mario Modifier) Fire: 0756:02
Fireball Trajectory Modifier
043A:??
043B:??
Ground Modifier
88 = Clouds, 86 = Water
There are many other combinations
06AC:??
06AD:??
Always Have Fireball
0754:00
0756:02
Fireball Trajectory Modifier - Fireball goes down like normal, then all the way up (like Super Mario Land for GB)
043A:00
043B:00
Fireball Trajectory Modifier - Fireball goes down at a sharp angle, then travels across the ground. Makes it difficult to hit enemies while jumping.
043A:FF
043B:FF
Every Enemy Killed Gives 1Up
0110:0B
0111:0B
0112:0B
0113:0B
0114:0B
Every Enemy Killed with Shell Gives 1Up
0125:08
0126:08
0127:08
0128:08
0129:08