Sonic 2 Lost Badniks Porting Help!

I want to port the Dino Bot and the Bat Bot from the beta version of Sonic 2 to the final, so I can get them to appear in Hidden Palace after I restore it. I'm going to use ESE II to restore Hidden Palace. How do I go about doing this with ASM? I have the disassembly of Sonic 2 final. There isn't a disassembly of the beta version, but I have one of the early prototype. Basically, I want to port those two lost badniks to the final game using the early prototype disassembly and the final disassembly. I don't know where to start, though. Can anyone help?

 

You cannot, and I repeat, cannot use ESE I or II with ASM, as ESE requires the moving of a shitload of data required when you disassemble the rom. There is, however, an alternative to using ESE II to port the level, and it includes the lost badniks, I think. RHS wrote a guide way back when, which should be floating around, somewhere. I would get you the link, but I have to go to school, so, meh.

 

My guide for putting the lost badniks in is found on the main site here under Lost Level Guide (redhotsonic's guide). It tells you how to do it by hex. If you know ASM well, it's not hard to read from my guide and do it by hex.

 

OK, stuff that can assist you:


Esrael's Sonic 2 Beta Disassembly.


A post showing how to restore HPZ that Dracula made in my help topic on Retro.


Note: The link to the hpz files in this post is dead but if you want you can use Esrael's pack & all object graphics can be found in the above disassembly, you may need to decompress them.


I haven't done any badnik porting yet so I can't assist you if you do get stuck.

 

Thanks. I have 2 questions, though. When I try to paste with a hex editor, it doesn't overwrite. It inserts. How do I get it to overwrite? Also, how do I use the .kos files in the download?


Edit: Never mind. I found a hex editor that overwrites when I paste, so I should be able to restore the lost badniks using the guide. But I still haven't figured out the kos files. Also, In the part of the guide about changing the VRAM so the sprites load right, what do I do there?

 

The VRAM bit has been explained. Simply go to the address for each badnik and follow the instructions carefully. Read the first badnik a few times. If you downloaded them packages, you only need to change the bytes highlighted in blue.


And, what's kos files, or am I being stupid here?

 

Kos files are in Esrael's hpz data pack.


It basically stands for Kosinski.


You can rename it to a .bin file if you want, it won't interfere.

 

Sorry to bother everyone, but I know exactly what to do except I don't get where to paste the program and the sprite data. I tried it and it froze the game when I started any level. I attempted just the bat bot. I pasted the bat bot program at $1EE68 and changed what was in blue in the guide. Then, I pasted the sprite data at $7A6A2. The pointer in the sprite table was changed to 00 01 EE 68. I think I pasted it at the wrong spot. I don't understand what to do with the data.

 

I'm not reading that with lines through the text.

 

I changed the post and got rid of the lines.

 

Mind my off-topicness, but what's a Trialist?

 

Appears to be a ripoff of the Trial Member system at Retro. =P

 

Well, you ripped things of from SSRG too... apparently.

That's better, I can read your post now. Anyway, did you actually use ESE editor at all for your hack? Because like said, it shifts a lot of data to different places. Because of this, the guide will no longer work because you'll most likely be putting new data over the shifted data.


Try doing the batbot to a clean Sonic 2 Rom and see if you get any results.

 

It did the same thing. Probably because I pasted the Batbot code over vital information in the ROM. I let the two player demo for Emerald Hill play and after a little while, Tails disappeared and the game froze. It also froze when I started to play Emerald Hill. I noticed that the file for the Batbot code is a byte shorter than what it said in the lost levels guide. I pasted it at $1EE68 and it ended at $1F2ED instead of $1F2EE. I think I'll locate the code in the beta ROM myself and change all of the pointers that should be changed. What if I pasted the Batbot code at the end of the ROM and told the game to point to there in the sprite table? Also, would converting MD8123.smd to a bin file with ESE II affect the Batbot code/sprite data?

 

lol, what?

 

You mean you've been editing a *.smd file and not a *.bin file? If so, that explains it all.

Ask Ordos. He did tell me but I forgotten. Something to do with limbo?

 

No, I've been editing a .bin file of Sonic the Hedgehog 2. The beta version I have has the .smd file extension.

 

That's kind of funny... does he think he invented the concept of member validation or something? It's been in effect at places like SClassic before it was here, and even then, it's an extremely common forum practice and has been for years.


On the other hand, Trial Membership is definitely something original. I've not seen anything like it before Simon came up with it.

 

I know exactly what to do! I just need the address of Hidden Palace's pattern load cues. What is the address?