So SMWHacker88 had time investigating in Titenic and here's what he found so far: Please note that all the values for the codes are in HEX, if you use FCEUmm, please convert these values to Decimal.
-Title screen and cutscenes are deactivated. And can only be accessed with advanced hacking in the RAM. With codes, only a black screen with the music can be accessed: 0028 = 0B and 0029 = 03
-The "Save Yes/No" that was seen while we were hacking the game with game genie can be accessed with 0053 = 01 -> It can be accessed while the game is paused. It's also working in Harry's Legend except the graphics aren't in the ROM.
-HL and Titenic do not have the same engine. Still they are both based off FF3. (For example: HL supports up to 13 enemies while Titenic hang up at 11).
-A continue can be added in the HUD. Likely for the second player after a gameover or it the gameover screen was going to be different.
-Pink Jelly/Rings does have a title screen, but the graphics were removed in 15in1.
-The panda clones have tons of unused music. Mainly beta musics that appeared in Samuri or just unused songs.
They are all located on 0701 = XX (XX = from 20 to 2F).
22 = ?
25 = Samuri menu screen beta
26 = ?
27 = ?
29 = Barrel game on Samuri
2B = Cute Head
2C = Star Bank beta
2D = Hammer music/Menu screens music on Samuri.
2E = ?
2F = ?
-War has the complete EWJ3 soundtrack as well with a new music "Butterfly": 0701 = 20 (or 2E)
KingPepe suggested it was used in the Dance Y2K as seen on ABAB Soft website or Finger DDR that appeared on Navigator PowerJoy.
-War was taken from the multicart that appeared on Abab website, the logo and the menu were deactivated but they are still "working":
4 in 1 Menu
0501 = 08
0121 = 40
0123 = 42
005A = 02
005C = BB
ABAB Logo
0501 = 07
0121 = BC
0123 = BE
-Rose has 2 unused frames and the game contains some odd frames that can knock the player down except they do not do damage and they can be killed.
-The spinning lizard does have a lifebar programmed but when you kill it, it dies with the default animation, the snake one.
-A working separate rom of Titenic can be downloaded here:
http://www.mediafire.com/?qgevgbetx9v2s5bIt's only working with FCEUmm (It *does* work on FCEUX but it may freeze while going through doors). Press Start on the black screen (which is in fact the title screen) to start the game. Any other emulator would end up stuck on the black screen.
Note: The Rom is marked as "f1" and "As" because a pat of the CHR was removed (it was only crap).
-Jack and Rose can be switched on the separate ROM made by SMWHacker88 -> 0110 = 00 for Jack and 01 for Rose.
-Only the first cutscene in Titenic is fully working with text. The other ones end as soon as the appear because no text was assigned to the cutscenes.
-Something that was supposed to be accessed by pressing "Select" was removed. It's unknown what it is supposed to be.
All the codes were created by SMWHacker88.