Hacking the graphics of smb2 is not that hard one could take the graphics out of the DDP hack and put them unmodified into smb2 or the prototype. With yychr or tlp. Yychr would be better for this tho. Using someone else's hack tho is not recommended with out permission. Unless you using it just for your self and not trying to get credit for it. Smb2 has four or five different locations for every graphic in the game. I not sure about the prototype. One could try changing the mapper to have vrom so the changes could be saved in Nesticle. But most here don't recommend using it anymore because there are better tools. let me know what mapper it is and I will take a look at it maybe I can change the mapper to have vrom it depends on what mapper it is tho. I am not even suppose to be hacking anymore. But with all this stuff thats been happening since I been missing I better get back at it. I will take a look at it maybe I might get back into hacking if I can do something with it.

Never mind unless you decide to use the normal smb2 rom which already has vrom or character rom mapper 4 not mapper 1 this prototype is like Zelda 1 somebody made it have vrom but good luck finding that one. Where did you get this weird prototype at I can't find it as a actual rom.

The graphics are compressed for this one so no good for me. I think I will get back to one of my own hacks instead. Good luck.

I can't remember where I found the prototype rom anymore.

I'm modifying the prototype as well as modifying SMUSA to be more like the prototype (less animation).

UPDATE: In the prototype, I have now replaced everything. Mario has been replaced with Imajin, Luigi has been replaced with Mama, Toad has been replaced with Papa and Peach has been replaced with Lina. I also changed the SMB2-only items back into the DDP items. Phanto, the mushroom (clown mask) blocks, shell (shrunken head), life mushroom (heart), 1-up mushroom (1-up heart- my own creation:   ), changed the "Bomb" explosion back into "Bom" and changed some of the text. The magic lamp and World 7 veggie were already in their DDP incarnations from the start in the proto.

I will have one patch that leaves the Mario characters and one that has DDP characters. I'm now getting the hang of YY-CHR. I am cutting and pasting sprites from the actual DDP fds rom into SM2 proto.

Changes made with yy-chr, thingy, nespaled and other hex editors

Story (Notice also the DDP characters in the border):




Changed 'Please Choose Player' to 'Player Change ??' (notice DDP man instead of arrow, DDP character heads, and removed curtains and border to closer match DDP selection screen):

(this pic has been photoshopped to show all four characters at once in color, in game only one is highlighted at a time.)

Changed 'World' to 'Chapter' (notice black DDP grass):


Changed life mushroom into heart:


Changed 1-up Mushroom into 1-up Heart that I created, and replaced the green grass with black DDP grass:


Changed "Bomb" back into "Bom" and changed the shell back into the head:




Changed Phanto:


Changed gate:


Changed Mario into Imajin:

I wonder if fully converting the SMB2 prototype would really be easier than just converting Doki Doki Panic directly to an NES game?  That is to say --- hacking the FDS game to become an NES game, rather than hacking SMB2 to become DDP.

The Doki Doki Panic fds rom cannot be converted into NES format. It's been tried.

You think I did a good job translating the animated intro from DDP into the story above? Cool, thanks!

I don't know about compressed or uncompressed, but when I open the rom in Tile Layer or yy-chr, the graphics are all mixed up and I don't know how to find what I'm looking for. Also, pieces of different sprites seem to be connected.

When I look at the sprites in Nesticle, they make more sence, but I just can't save my changes (in the proto).

I tried a long time ago, but I couldn't do it. Check the 2nd post in my thread here:
http://board.acmlm.org/thread.php?id=4558&o=0&p=20

I may need some help. Anyone know of a way to hack the game to make the characters stay big and/or small, since they don't shrink in DDP?

No I didn't know that! Wow! I feel so stupid now! I am back to hacking the proto now! Sweet!