CRACKdown's Retro Codes

[CRACKdown]

NES - Jackie Chan's Action Kung Fu (U)

Slippery Floors (set to 00 to disable slippery floors)
00E1:10

Night Mode
0185:01
0186:0C
0187:0F
0189:01
018A:22
018B:11
018D:01
018E:11
018F:04
0199:37
019B:25
019D:20
019F:27

Walk Behind Scenery (Can be hard to see Jackie at all in some locations)
0600:07

[CRACKdown]

NES - Super Mario Bros. 2 (U)

Sub World Graphics
030C:01
030D:0F
030E:0F
0310:01
0311:0F
0312:0F
0314:01
0318:01
031C:01
0320:01

Makes graphics appear like the sub world all the time. Leaving 0312 off will improve visibility. Also having different combinations on can be interesting, I'm sure different values will work also.
Causes some graphical errors in upward scrolling areas.

[CRACKdown]

NES - Contra (USA)

Difficulty Modifier (00, 01, 02...)
0031:??

I found out that Contra gets more difficult the more you play through it, so I had to find out how to do it. Not sure exactly how high this can go before maxing out but any value seems to work.

[CRACKdown]

NES - Super Mario Bros. (World)

Walk Behind Scenery
03C4:20

Causes discoloration of some blocks for some reason, but that's kinda fun also.

[CRACKdown]

NES - Super Mario Bros. (World)

Scrolling Always Enabled
0732:00

I made this code because I found out that all the bonus rooms in SMB are on the same level and wanted to explore it myself. You may want to use a walk through walls code or jump code to get past some of the blocks. Using the -1 world jump trick can also work in some locations. I imagine this might allow you to get past Bowser without actually defeating him or grabbing the axe, but haven't tested that yet. May prove to be useful in other ways also.

[CRACKdown]

NES - Castlevania III - Dracula's Curse (U)

Infinite Hearts (Turn off at end of Level to proceed)
0084:99

Weapon Modifier
0085:??

Sylph Weapon Modifier
0086:??

Values work for both characters but graphics are a little
strange for weapons that aren't usually suited for that character.
01 = Axe
02 = Cross
03 = Knife
04 = Holy Water
05 = Fireball
06 = Ice Blast
07 = Bubbles
0B = Stop Watch


Multishot Weapon Enabled
0087:02

Moving Water doesn't effect You / Swamps don't slow you down as much
008B:00

Whip Modifier
008E:02

00 = Normal Whip
01 = Chain Whip
02 = Long Chain Whip

Alucard's Shot Modifier (00-02)
008F:02

Stopwatch Lasts Forever
00AC:50

Freeze Enemies
00AB:01

No Enemies / Enemy Graphic Modifiers (Turn off for Bosses, Disables some moving platforms also.)
0401:00
0402:00
0403:00
0404:00
0405:00
0406:00
0407:00
0408:00

Move Faster Left to Right (Will slow you down going Left, but gives longer jumps also)
0509:80

One Hit Snake Skeletons
0683:00

Alucard can't turn into bats while fighting him.
(Turn on when he takes form make sure he is at ground level, turn off when Health is depleted)
07EF:00


I have a hard time believing some of these Castlevania codes haven't been hacked before, but I didn't see them in the database. I don't want to steal credit for something that's already been done.
Might wait to put them in for a bit. Any feedback would be appreciated.

[CRACKdown]

NES - Castlevania II - Simon's Quest (U)

9999 Hearts
0048:99
0049:99

Special Items (20 = White Crystal FF = All other Items)
0091:??

All Weapons
004A:FF

Infinite Garlic (After Purchasing Them)
004D:02

Infinite Laurels (After Purchasing Them)
004C:02

Whip Modifier
0434:??

00 = Regular Whip
01 = Thorn Whip
02 = Chain Whip
03 = Morning Star
04 = Flame Whip



NES - Akumajou Dracula (J)

Disable Medusa Heads
04E5:00

[CRACKdown]

NES - Bananan Ouji no Daibouken (J)

Walk Through Walls
0078:00
007A:00

Level Modifier
009E:??

Swim Anywhere
00E1:40

Freeze Timer
0111:04
0112:02
0113:00

Boss Dies
045E:00

Shot Modifier
05BC:??

01 = Star
02 = Bubble
03 = Crescent Blast
04 = Long Range Crescent Blast
05 = Two Stars
06 = Two Bubbles
07 = Two Crescent Blasts
08 = Long Range Two Crescent Blasts
09 = Alt Two Stars
0A = Alt Two Bubbles
0B = Alt Two Crescent Blasts
0C = Alt Long Range Two Crescent Blasts
0D = Three Stars
0E = Three Bubbles
0F = Three Crescent Blasts

Night Mode
03E0:01
03E1:17
03E2:0F
03E4:01
03E5:09
03E6:06
03E8:01
03E9:1b
03EA:0F
03EB:0F
03EC:01
03ED:10
03EE:11
03EF:0F
03F0:01
03F1:0F
03F2:10
03F3:30
03F4:01
03F8:01
03FC:01


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NES - Akumajou Special - Boku Dracula-Kun (J)

Jump A Little Higher
00B4:00

Infinite Bat Time / Autofire special Attack
(Will let you fly around as long as you like, can go through most obstacles above you and when you hold B you can still walk around normally).
00A8:50

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NES - Attack Animal Gakuen (J)

Invincible
030B:A9

Ground Color Modifier
030F:??

01 = Greens
02 = Browns
03 = Reds
04 = Blues
05 = Black/White
06 = Blue/White

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NES - Asmik Kun Land (J)

Infinite Item Time
054E:B4

Freeze Enemies (Will effect the use of other items)
03F2:03

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NES - Baltron (J)

Invincible
0014:80

[CRACKdown]

NES - Batman - Return of the Joker (U)

High Jump
009E:80

Super Jump (Hold Jump until you want to come down, if you get stuck behind something in scrolling levels the game will freeze though)
047D:03

Enemies Die On Contact (Can still cause Damage)
0473:80

Walk Behind Scenery
046F:20

[CRACKdown]

NES - Castlevania (U)

Disable Medusa Heads (043B:00 will disable other random enemies, but needs to be turned off for some bosses to appear)
043D:00

[CRACKdown]

NES - Castlevania (U)

Multishot Weapons Enabled
0064:02

[CRACKdown]

Genesis - Superman

Speed Modifier (02 = Normal Walk, 04 = Normal Run; increase as desired)
FF8E16:06

Fly with Laser Vision (Activate then turn off again.)
FF8E21:01

Untouchable
FF980D:20

[CRACKdown]

Genesis - Spirou

Slow Descent Jump (If your hanging off a ledge, you can levitate by moving in the opposite direction)
FFE7ED:00

[CRACKdown]

Genesis - Socket

Super Jump with Slow Descent
FFA009:30

Level Modifier (00, 01, 02...)
FFFD0D:??

[CRACKdown]

Genesis - Snow Bros. (J)

Speed Up
FF0563:02

Untouchable (Deactivate at end of level to ascend)
FF0561:00

Full Range Shot (The Values determine trajectory, can be kept all the same or played around with)
FF0243:1A
FF0283:1A
FF02C3:1A
FF0303:1A

Easy Bosses
FF0861:00

Power Up Modifier
FF11A4:??

10 = Powered Up Shot
20 = Long Range Shot
30 = Powered Up Long Range Shot