Codes by BigBossman

[BigBossman]

Simple 2000 Series Vol. 99 - The Genshin (J) - PS2 - NTSC - RAW

Master Code
901124D0 0C0448DC

Master Code (Alternate)
9011BD20 0C04A6DE

Master Code (Alternate)
9012E4B8 0C04B904

***Codes Added***

[BigBossman]

Simple 2000 Series Vol. 52 - The Space Raiders (J) - PS2 - NTSC - RAW

Master Code
9011FE38 0C047F36

Master Code (Alternate)
9012A51C 0C04C0FC

Master Code (Alternate)
901F92C0 0C04BE08

***Codes Added***

[BigBossman]

Simple 2000 Series Vol. 39 - Boku No Machi Zukuri (J) - PS2 - NTSC - RAW

Master Code
90110538 0C0440F6

Master Code (Alternate)
9012B3F8 0C0616EC

***Codes Added***

[BigBossman]

Biohazard: Outbreak (J) - PS2 - NTSC - RAW

Master Code
90116B70 0C045A84

Master Code (Alternate)
901A8804 0C042B40

***Codes Added***

[BigBossman]

Grand Theft Auto: Vice City J (Best Price - SLPM 66790) - PS2 - NTSC-J - RAW

Master Code
90115478 0C0454C6

Master Code (Alternate)
901220EC 0C041C64

Master Code (Alternate)
90278358 0C048DBC

***Codes Added***

[BigBossman]

Famicom Mini Volume 16: Dig Dug (J) - GBA - NTSC - CB

Infinite Lives
33007260 0004

Round Modifier
3300726E 00??

Score Adds Up Super Fast
8300726C FFFF
NOTE: You'll also get multiple extra lives.

***Codes Added***

[BigBossman]

Classic NES Series: Castlevania - GBA - NTSC - CB

Stage Section Modifier
33007228 00??
NOTE: Use Values "00" to "13".

Increased Difficulty
3300722B 0001
NOTE: Bats fly at you from the start. One hit from an enemy takes off 4 units of health.

***Codes Added***

[BigBossman]

Famicom Mini Volume 21: Super Mario Bros. 2 (J) - GBA - NTSC - CB

99 Coins
3300795E 0063
NOTE: Every coin collected will give you an extra life.

Firey Mario / Luigi
33007956 0002

Swimming On
33007904 0001

Moon Jump
33007909 0001

Random Changes to Stage Layout & Enemies
33007932 0001

Changes Certain Green things to Red
33007933 0001
NOTE: Mostly parts of the background & pipes.

Adds Water or Lava to Stages
33007941 0001

Adds Unbreakable Cloud Blocks
33007943 0001
NOTE: Falling into pits won't kill you. You'll reappear in a different part of the stage.

Vine Grows at the Start of Every Stage
33007958 0001

Mario / Luigi Modifier
33007953 00??
NOTE:
Values -
00 - Mario
01 - Luigi

Hard Mode is Active
3300796A 0001

Star Invincibility is Always Active
3300799F 0001

Koopa Troopas & Beetles Can't be Squashed
33007996 0001

Time Ticks Down Super Fast
33007987 0001

Super Fast Walking Animation
33007981 0001

Game Pack Error Message (in Japanese)
33007939 0001

Music Modifier
330072F0 00??
NOTE:
Values -
00 - No Music
01 - Above Ground Music
02 - Underwater Stage Music
04 - Underground Music
08 - Castle Music
10 - Invincible / Cloud Bonus Stage Music

***Codes Added***

[BigBossman]

Gradius Galaxies - GBA - NTSC - CB

Untouchable
33004D08 0001
NOTE: You won't be able to pick up any power-ups.

Fewer Enemies
33004D14 0001

Erratic Enemy Behavior
33004D21 0001
NOTE: Most enemies move extremely fast, some don't fire, & some fire more frequently.

Enemies Have a Higher Rate of Fire
33004D23 0001

Looping Stage Pattern
33004D24 0001

Enemies Appear Sooner
33004D26 0001
NOTE: This causes the stage not to be synchronized with the enemies. They will appear to be out of place.

Advance to Boss Fight
33004D27 0001

***Codes Added***

[BigBossman]

Classic NES Series - Super Mario Bros. - GBA - NTSC - CB

Super Fast Walking Animation
33007981 0000

Time Ticks Down Super Fast
33007987 0000

Enemies Can't Be Squashed
33007996 0001
NOTE: Instead of Goombas being flattened or Koopa Troopa / Beetles retreating in their shells, you'll bounce off of them, get points, but they will still keep going like nothing happened.

Star Invincibility always active
3300799F 0001

***Codes Added***

[BigBossman]

Double Dragon Advance - GBA - NTSC - CB

Enemy 1 Weapon Modifier
82037C02 ????
NOTE: There is a limit as to how many weapons can appear on screen at the same time. Sometimes when attacking an enemy, they will drop multiple weapons before falling down. Some enemies are not designed to hold certain weapons, but will drop them once attacked. This even works on Survival Mode, where you normally don't have access to weapons.
Values -
0100 - Unarmed
0110 - Knife
0111 - Bat
0112 - Whip
0113 - Dynamite
0114 - Ball & Chain
0115 - Axe
0120 - Oil Drum
0121 - Boulder
0130 - Sticks
0140 - Nunchucks

Enemy 2 Weapon Modifier
82037C62 ????

Enemy 3 Weapon Modifier
82037CC2 ????

Enemy 4 Weapon Modifier
82037D22 ????

Enemy 5 Weapon Modifier
82037D82 ????

Enemy 6 Weapon Modifier
82037DE2 ????

***Codes Added***

[BigBossman]

Double Dragon Advance - GBA - NTSC - CB

Unfortunately, I was hoping to also find that you could fight a variation of Billy or Jimmy Lee, but couldn't find any values that worked. I also had hoped to find a code that allows Player 1 or Player 2 to play as an enemy character, but that didn't work either. The enemy modifier codes had me puzzled at first, but then using the memory editor on the Visual Boy Advance emulator, I was able to find the values to change up the enemy characters. I did find palette modifiers for Enemy 1, but there are bunches of addresses & values involved (for each character's color set) & would a bit too time consuming to find each address & list each value.

Enemy 1 Modifier
82037C18 ????
NOTE: These codes work on every stage, including Survival Mode. Enemies might briefly make an appearance as they are supposed to be & then they will change to who you designate. Enemies will also attack like they were supposed to. For example: If Abobo turns into Linda, Instead of doing a double axe handle, Linda will do a single punch that knocks you to the ground. Some moves that an enemy performs might cause a glitch, but it doesn't glitch very often.
Values -
987C - Williams
9C0C - Rowper
9F9C - Linda
A32C - Bald Abobo
A6BC - Afro Abobo
AA4C - Mohawk Abobo
ADDC - Burnov
B16C - Chin Taimei
B4FC - Chen Gui
B88C - Hong
BC1C - Kikucho
BFAC - Kikucho Samurai
C33C - Guy with Suit & Shades
C6CC - Bald Guy with Suit & Shades
CA5C - Raymond
CDEC - Anderson
D17C - Wu In-sik
D50C - Raymond
D89C - Yang Zheng-Li
DC2C - Willy
DFBC - Marian (Walks Around Doesn't Attack, Falls When Hit)
E34C - FROZE

Enemy 2 Modifier
82037C78 ????

Enemy 3 Modifier
82037CD8 ????

Enemy 4 Modifier
82037D38 ????

Enemy 5 Modifier
82037D98 ????

Enemy 6 Modifier
82037DF8 ????

***Codes Added***

[BigBossman]

Classic NES Series - Super Mario Bros. - GBA - NTSC - CB

Swim on All Stages
33007904 0001
NOTE: Unlike the NES version, you can bounce on other enemies & hit blocks.

Moon Jump
33007909 0001
NOTE: Hold the A button to continue going up in the air.

Squat Jumping
33007914 0001
NOTE: When this code is active, you can't throw fireballs while jumping.

Invisible Background
33007920 0001

Coins Appear Across the Top of the Stage
3300792C 0001

Random Coin & Block Placement
3300792E 0001
NOTE: Might make certain stages impassible.

Makes Random Changes to Most Stages
33007932 0001
NOTE: This code produces a variety of effects. It might add a series of coin blocks, add blocks to pits, or even remove various parts of a stage. It might make some areas impassible. This code is best used with the code "Multi Jump" (D0000020 0001 3300729F 00FC).

Red Scenery
33007933 0001

Add Metal Blocks to Most Stages
33007934 0001
NOTE: The most noticeable change is near the end of most stages. You'll notice a change in the pattern of metal blocks before jumping onto the flagpole. This code is best used with the code "Multi Jump" (D0000020 0001 3300729F 00FC).

Game Pack Error Message
33007939 0001

Water or Lava Added to Most Stages
33007941 0001
NOTE: Most pits will also be covered.

Clouds in the Background on All Stages
33007942 0001

Unbreakable Cloud Blocks Added to Stages
33007943 0001
NOTE: These replace most brick blocks.

Play As Luigi
33007953 0001

Vine Grows at the Start of Every Stage
33007958 0001

Hard Mode Enabled (Alternate)
3300796A 0001

***Codes Added***

[LrdRokol]

I love seeing quirky crazy codes. With a little work they turn into bigger better codes. [Thumbs up]

[BigBossman]

Classic NES Series - Zelda II: The Adventure of Link - GBA - NTSC - CB

Start on the Map Screen
33007909 0001
NOTE: Instead of starting in the area where Princess Zelda is, you'll start on the map screen.

Discolored Stages
3300791E 0001
NOTE: This is also useful in cave stages because you can see the layout of the stage & see your enemies better before you get the candle.

Add Platforms or Blocks to Stages
33007931 00??
NOTE: Might make some areas impassible. The higher the value, the higher up the added platforms / blocks are.

Game Pack Error Message
3300793F 0001

Save Corruption Message
33007950 0001

Move Much Slower on Stages
33007952 0001

Level Points Increase Automatically
33007956 0001

Start Stages By Being Dropped In
33007957 0001

Remove Locked Doors
33007958 0000
NOTE: Making the Value "0001" will cause a locked door to appear on the left side of most stages.

Fairy Appears on Most Stages
33007959 0001
NOTE: Best used to refill health. Turn off when not needed. This will prevent stages from scrolling, which will make them unbeatable.

***Codes Added***