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Batman Bros. - SMB1 Two Players Hack

Started by NesDraug, November 30, 2018, 07:40:43 AM

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NesDraug

So I wanted to do something with that awesome Super Mario Two Players Hack by Corpse Grinder and Ti.

This is Batman Bros. Co-Op.
Batman and his long lost twin Batbro find themselves in a very dark Mushroom Kingdom.



Link to IPS-file: (version 0,6)
https://www.dropbox.com/s/j7o6g9j5f22sy1x/Batman%20Bros%20by%20NesDraug%20v0%2C6.ips.zip?dl=0

ROM: Super Mario Bros. (W) [!] [NES] - GoodNES V3.23b




It's a real chore hacking this rom because I can't use any of the custom smb1 utilities since the information in the two player hack is altered.

- Sprite editing in NES CHR Editor
- HEX-editing in FCEUX to fix the colors

This is a work in progress, please tell me what you think or feel free to ask me if you have any questions.
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Edit: (Released version) : https://www.romhacking.net/hacks/4265/
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✍️ Blog: https://www.tumblr.com/blog/nesdraug

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Googie

I'm gonna have to try this out with a friend of mine, I do like the Batman look of it though.  :D :cookie:

Eden.GT

Could have perhaps dragged the SMB1 new level data in the two player hack (via graphics editor) to see if it works fine.
Is the pool clean?

NesDraug

#3
Quote from: Googie on December 01, 2018, 08:27:06 PM
I'm gonna have to try this out with a friend of mine, I do like the Batman look of it though.  :D :cookie:

Hes simply menacing adorable. Like LEGO Batman.

Please do, and report back if you encounter any bugs. I haven't managed to change all the sprites for all enemies yet. I was thinking of tweaking the physics a bit giving batman more speed and jumping power.

December 10, 2018, 08:00:54 AM - (Auto Merged - Double Posts are not allowed before 7 days.)





UPDATE
- Fire flower is now Bat Shurikens
- Player Two is now grey instead of green in underwater levels
- Mushrooms are batmask with blue eyes

I tried to replace the tile card and write BATMAN instead of SUPER MARIO BROS. but I simply couldn't get it to work. I think I'll call it a day. I'm quite satisfied with my hack though it could be improved.

IPS File:
https://www.dropbox.com/s/713k2zhkvg7ccdw/Batman%20Bros.%20v0%2C7%20By%20NesDraug.ips?dl=0

Used rom: Super Mario Bros. (W) [!]
✍️ Blog: https://www.tumblr.com/blog/nesdraug

💀 Join my crypt on discord:
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NesDraug

UPDATE: (I think this is the final one)



- Stars are now bats
- Fixed game over bat symbol
- Well, that title screen is the best I can do




IPS FILE:
https://www.dropbox.com/s/270w4y2eewwx40k/Batman%20Bros.%20Co-Op%20by%20NesDraug.zip?dl=0


Rom: Super Mario Bros. (W) [!]
✍️ Blog: https://www.tumblr.com/blog/nesdraug

💀 Join my crypt on discord:
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capnkatie

#5
The title screen is a little bland. Are you planning on sprucing it up? If not, I could attempt it

December 12, 2018, 11:15:13 AM - (Auto Merged - Double Posts are not allowed before 7 days.)

Actually, no. I created a pretty sweet-lookin title screen, but couldn't put it in because all of the data is offset or something. Shame, really.  :-\

NesDraug

Quote from: HPJ on December 12, 2018, 10:55:54 AM
The title screen is a little bland. Are you planning on sprucing it up? If not, I could attempt it

December 12, 2018, 11:15:13 AM - (Auto Merged - Double Posts are not allowed before 7 days.)

Actually, no. I created a pretty sweet-lookin title screen, but couldn't put it in because all of the data is offset or something. Shame, really.  :-\

I agree. This was the best I could do. :P
I tried to make a cool title screen but I don't know how to insert it into the rom without damaging the code for the two player hack. Remember I'm working with an already patched version of SMB. https://www.romhacking.net/hacks/4180/

If someone know how to do it. Please, feel free. :)


Edit: Just out of curiosity. What did your title screen look like? 
✍️ Blog: https://www.tumblr.com/blog/nesdraug

💀 Join my crypt on discord:
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capnkatie

It seems really odd, it's all in the right place but if you open the patched rom in a graphics editor, there's about two tables of empty space at the beginning. I mean, I'm no expert but that seems weird to me.

NesDraug

Quote from: HPJ on December 12, 2018, 06:14:32 PM
It seems really odd, it's all in the right place but if you open the patched rom in a graphics editor, there's about two tables of empty space at the beginning. I mean, I'm no expert but that seems weird to me.

The two player hack is a pretty unusual hack so I guess Corpse Grinder and Ti had to move the data around to make simultaneous gameplay possible. I have no idea why, but it sure limits my possibilities.
✍️ Blog: https://www.tumblr.com/blog/nesdraug

💀 Join my crypt on discord:
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Eden.GT

After all, it's quite not intended that this "base" hack is user-friendly to make another hack out of it.
Is the pool clean?

NesDraug

Quote from: HPJ on December 12, 2018, 10:55:54 AM
I created a pretty sweet-lookin title screen, but couldn't put it in because all of the data is offset or something. Shame, really.  :-\

Just out of curiosity. What did your title screen look like? Can you upload a pic?
✍️ Blog: https://www.tumblr.com/blog/nesdraug

💀 Join my crypt on discord:
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NesDraug

#11


So I finally managed to make a descent title screen for Batman Bros. Co-Op!

- I used the original rom Super Mario Bros. (W)[!] and drew the graphics in Tile Molestor.
- Then I placed out the new title screen with SMB Title Screen Editor
- The title screen data is in the end of both the original rom file and the Two Players hack. Copied the new data in FCUEX.

Title screen location in the original rom (it goes all the way to the end of the code in the romfile)



Title screen location in the Two Player hack  (it goes all the way to the end of the code in the romfile)

✍️ Blog: https://www.tumblr.com/blog/nesdraug

💀 Join my crypt on discord:
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NesDraug

Okay! It's finished. Version 1.2 is getting a release any day now.



I've fixed a lot of bugs and edited enemies, backgrounds and even managed to edit the levels (slightly)
✍️ Blog: https://www.tumblr.com/blog/nesdraug

💀 Join my crypt on discord:
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MathUser2929


NesDraug

Yeah! Now it's released. With slightly altered levels. Yay!

I'm thinking of doing new levels and make a completely new hack based on this... But inserting new levels into the Two Player Hack is quite a chore.
We'll see. ^^

https://www.romhacking.net/hacks/4265/
✍️ Blog: https://www.tumblr.com/blog/nesdraug

💀 Join my crypt on discord:
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NesDraug

Here's a video of me playing the final(?) version of this hack.

Do you think I should have left the original warps in the game, or are glitch levels a fun bonus?


VIDEO:  https://youtu.be/EDcfCyfbF-E
✍️ Blog: https://www.tumblr.com/blog/nesdraug

💀 Join my crypt on discord:
https://discord.gg/Eb4HTSNzeg