nensondubois' codes

[nensondubois]

Wario Land II (USA, Europe) (SGB Enhanced).sgb

Invulnerable / disable enemy and special object collision
C90-F6B-193

[nensondubois]

Wario Land II (USA, Europe) (SGB Enhanced).sgb

Start in Flagman DD menu (This code allows you to start Wario Land II in the main menu of the minigame Flagman DD albiet without the music, and it will break your continued progress if you start a new game and continue from there because you will start at the level select screen on the second stage permanently unless you select New Game and clear the data, or use a code to give you access to all treasures and stages completed.)
100-33B-C4E
D80-35B-80D

Flagman DD is always free (Allows you to select 'PLAY', but 'EXIT' will appear highlighted. You will still be charged coins if you have enough.)

001-C3B-19E

[nensondubois]

Wario Land II (USA, Europe) (SGB Enhanced).sgb

Always guess correct answer in treasure chest minigame
EA2-A7A-081

[nensondubois]

Wario Land II (USA, Europe) (SGB Enhanced).sgb

Currents do not drag Wario
EA1-0BA-081

Water has no effect
EA1-0BA-081
EAE-8DB-081

[nensondubois]

Bomber Man GB 3 (Japan) (SGB Enhanced).sgb

Place bomb to proceed to the next stage
0CA-7EB-802
46A-7FB-2A3

Invulnerable to bombs
21A-87B-081

[nensondubois]

Soukoban Densetsu - Hikari to Yami no Kuni (Japan) (SGB Enhanced).gbc

Load unused Super Game Boy palette
111-31B-6EE
001-3BB-6EA
(Here's the lost matching border palette. There's also an oddly matching overlay appearing to fit anywhere. There is also a variation which removes the lowermost 8x8 tilemapping.

I guess they chose a black and white palette for the final because it makes your custom palettes stand out and they wanted focus on that feature? They could have given the option to switch between the two.)

Loads unused palette without modifying ATTR_BLK attributes
001-3BB-6EA

8x8 Border Restoration Fix
008-6DB-D5A

https://twitter.com/nensondubois_/status/891869088988975105
Took 4 minutes. To fix the border, modify 0x01086D to 00 from 0C or via Game Genie code 008-6DB-D5A. Seriously, how did they fuck this up? What, were the game developers blind? I don't know, for a game that focuses on a feature like this, you would think someone in the planning team and testing phases beyond graphical design would notice an anomaly this obvious? Well, no, apparently, because the first skull is the only one that fully matches with your custom palette. So, maybe the border's ability to adapter with the player's palette was an afterthought? More on the skulls later because I will restore their tiles as well.)

[nensondubois]

Soukoban Densetsu - Hikari to Yami no Kuni (Japan) (SGB Enhanced).gbc

Title screen music modifier
??0-49A-E6E

[nensondubois]

Mortal Kombat 4 (USA, Europe) (SGB Enhanced).gbc

Enable Reptile (long version)
C9C-41C-7F4
FFD-A3C-A2A
38D-9EC-4CA

Enable Reptile (Short version)
18D-5EC-6EA
38D-9EC-4CA

[nensondubois]

Super Mario Bros. 2 (U) PRG 0 / 1 / USA.nes

Restore unused death DPCM sound effect with music
SZXAPKSE
SZXATKSE

Restore unused death DPCM sound effect with music (With DPCM hiccups; due to stopping the game form muting DPCM on track changes, which causes the sample to not play.)
YPXAIKYE

Disable music when a DPCM plays (resume music by jumping or playing a non-DPCM sound effect)
APUEIUYP

Restore unused death DPCM sound effect without music
APXAIKYA

Jump to hear unused death sound effect
EAUEOGPA

Crazy DPCM that sounds very wrong (use with TKEATSPE)
SLXEPUSE

Trivia: The DPCM sound effects in Super Mario Bros 2 / USA are actually conversions of the FDS channel's FM from the original version that was released in Japan as 夢工場ドキドキパニック Yume Kōjo Doki Doki Panikku, literally "Dream Factory: Heartbeat Panic".

[nensondubois]

Super Mario Bros. 2 (U) PRG 0 / 1 / USA.nes

Invulnerable
GXVUZTAX

Die instantly
GXVLZTAX

No enemies (may get stuck)
GXVEIPAX

Disable HUD
GZKNTPAX

Drunk Mode (enemies are blurry like you're drunk)
GXXVLGAX

[nensondubois]

Killer Instinct.sgb

One old code and a new code.

Always fight at the unused stage (Someone else provided the Gameshark code on the Mortal Kombat forums a long time ago, yet I can't find it. I converted the code to Game Genie.)
094-A6D-E62
024-A8D-E6A
C74-A9D-6EA

Title screen music modifier
??6-279-E6E

Incomplete track listing
07 - Gangsta
0E - Orchid

[nensondubois]

From TV Animation Slam Dunk - Gakeppuchi no Kesshou League (Japan) (SGB Enhanced).gb

Debug Screen
011-82B-F7E
012-B8B-F72

Game Genie code 011-82B-F7E will enable an extremely cumbersome debug screen select upon pressing start at the title screen. Most screens will crash outright and load incorrect CHR data and only allows you to select sub-menus; because of this, use the the code 012-B8B-F72 then enter the game select menu. A number will appear at the upper-right corner. All menus after 03 will crash the game.
00 - Returns you to the title screen
01 - CHR viewer for characters. Severely broken.
02 - Message viewer. Displays all messages. CHR is sort of broken.
03 - Screen viewer. Displays a screen for each scenario. CHR is sort of broken.

Dunk Test
A02-BAB-6EC
042-B8B-F72

Game Genie codes A02-BAB-6EC + 042-B8B-F72 will access the Dunk Test menu. Setting 0 will successfully complete a dunk and play the one second SGB clapping sound.

Status Test
A02-BAB-6EC
072-B8B-F72

Game Genie code A02-BAB-6EC + 072-B8B-F72 will allow you to test player statuses.

Sound Test
A02-BAB-6EC

Game Genie code A02-BAB-6EC will access the Sound Test menu.

Replace PAL01 with the unused Super Game Boy ICON_EN Command
A66-7C8-3B4

There is an unused ICON_EN with the bit setting of 03 disabling palette and controller settings. Game Genie code A66-7C8-3B4 will enable this function, replacing PAL01. Located at 0x1B39.

[nensondubois]

From TV Animation Slam Dunk 2 - Zenkoku e no Tip Off (Japan) (SGB Enhanced).gb

Super Game Boy 'SOUND' Test
012-A6A-C42 + 002-AAA-E62

There is a Super Game Boy sound effect test appearing as a garbage screen. Game Genie code 012-A6A-C42 + 002-AAA-E62 will replace the title screen. Press UP and Down to select the A-type sound effect. Press Left and Right to select B-type sounds. A plays A-type sounds while B plays B-type sounds. Select stops both sounds. To set A-Type pitch and volume commands, Hold Start and Press Up to set the pitch, and Left to set the volume incrementing and resetting to initial values. To set B-Type pitch and volume commands, Hold Start and Press Down to set the pitch, and Right to set volume.

Sound Test
102-A6A-C42
002-AAA-E62

Aside from a Super Game Boy sound test, there is a standard sound test that lets you test all the music and sounds in the game using Up and Down. Game Genie codes 102-A6A-C42 + 002-AAA-E62 will replace the title screen with the sound test.

UFO Game
052-A6A-C42
002-AAA-E62

The UFO game makes a reprise, this time, Turbo is used and the graphics are different than the counterpart found in Captain Tsubasa J: Zenkoku Seiha e no Chousen. Game Genie codes 052-A6A-C42 + 002-AAA-E62 will replace the title screen with a hidden game called UFO GAME. The gameplay is basically a cross between Space Invaders and Centipede – the player must shoot UFOs while avoiding the malice-stricken alien which will home in on him.

Super Game Boy palettes were not programmed and will display the prior screen settings.

Goalie Test
032-A6A-C42
002-AAA-E62

Tests goalie field positions. Game Genie codes 032-A6A-C42 + 002-AAA-E62 will replace the title screen with a the goalie test.

Cutscene Animation Viewer
142-A6A-C42
002-AAA-E62

Tests all animation cutscenes and scenarios in the game. Game Genie code 142-A6A-C42 + 002-AAA-E62 will replace the title screen with the animation cutscene test.

Halftime Test
232-A6A-C42
002-AAA-E62

Tests all Halftime screens. Game Genie code 232-A6A-C42 + 002-AAA-E62 will replace the title screen with the Halftime test.

Timer Test
242-A6A-C42
002-AAA-E62

Tests the clock which does not countdown and resets back to 00 after activating. Game Genie code 242-A6A-C42 + 002-AAA-E62 will replace the title screen with the timer test.

Replace PAL01 with the unused Super Game Boy ICON_EN Command
40E-14D-A2F

There is an unused ICON_EN with the bit setting of 03 disabling palette and controller settings. Game Genie code 40E-14D-A2F will enable this function, replacing PAL01. Located at 0x1B39.

Enable Unused Main Menu Border Set Routine
00A-45D-E62

Normally, when the game detects that a different border other than the default is loaded, it will load the default when an in-game reset is initiated. There is an additional border check routine that is unused because it is only possible to set the border before the menu selection. Game Genie code 00A-45D-E62 will set the first border allowing the menu border check routine to be active which will now load the default border.

[nensondubois]

Captain Tsubasa J - Zenkoku Seiha e no Chousen (Japan) (SGB Enhanced).gb

Character Viewer
01028BFF

Character Viewer
02F-E3A-F76

GameShark code 01028BFF or Game Genie code 02F-E3A-F76 will replace the main menu with a character viewer offering a dozen hilarious expressions.

UFO GAME
01098BFF

UFO Game
09F-E3A-F76

Unmarked Helicopters! Anyone remember the X-Files? Captain Tsubasa J Zenkoku Seiha e no Chousen J SGB Unused Turbo II.png

GameShark code 01098BFF or Game Genie code 09F-E3A-F76 will replace the main menu with a hidden game called UFO GAME. The gameplay is basically a cross between Space Invaders and Centipede – the player must shoot UFOs while avoiding the blue bastard which will home in on him.

Super Game Boy palettes will be black when using the GameShark code because there is no assigned palette. The title screen may have been unfinished, as it has slight graphical glitches.

Present at 0x5E8E amongst the title graphics are additional title graphics for II' TURBO as well. These had been used in the same game found in From TV Animation Slam Dunk 2: Zenkoku e no Tip Off.

Debug Menu
010B8BFF

Debug Menu
0BF-E3A-F76

Actually, this is a semi-broken CHR viewer. GameShark code 010B8BFF or Game Genie code 0BF-E3A-F76 will replace the main menu with this screen.

Sound Test
011E8BFF

Sound Test
1EF-E3A-F76

Test all the music and sounds in the game using Up and Down. GameShark code 011E8BFF or Game Genie code 1EF-E3A-F76 will replace the main menu with the sound test.

Animation Viewer
01FE8BFF

Animation Viewer
1FF-E3A-F76

Test all animations out in the field. GameShark code 01FE8BFF or Game Genie code 1FF-E3A-F76 will replace the main menu with the animation viewer.

Replace PAL01 with the unused Super Game Boy ICON_EN Command
39C-C5E-C43

There is an unused ICON_EN with the bit setting of 03 disabling palette and controller settings. Game Genie code 39C-C5E-C43 will enable this function, replacing PAL01. Located at 0x1B39.

[nensondubois]

Columns GB - Tezuka Osamu Characters (Japan) (SGB Enhanced).gbc

Skip intro screen
099-77F-C46