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  • Joined: 09 Jun 2014
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Sonic Genesis for Master System v1.02
Post Posted: Thu Jun 17, 2021 8:51 pm
Last edited by slogra on Sat Jun 26, 2021 10:56 am; edited 3 times in total
Sonic Genesis for Master System: v1.02
- This hack replaces the Master System Sonic character by the Genesis version.
- Some sacrifices had to be made due to limitations of the Master System. Sonic had to be resized and the number of colors lowered. A lot of time, effort and eye squinting went into optimizing each frame manually, keeping as much detail from the Genesis as possible.
- The palette has been changed to make his shoes red.

How use the patch:
- The ips patch must be applied to the Master System version of Sonic the Hedgehog.
- Unpack both the original rom and this patch.
- Use Lunar IPS to apply the patch to the rom (it will overwrite the original rom).
- Play!

- Optionally you can use one of these color palette patches. Make sure to apply them to the original rom:
- Game Gear: Lighter red shoes and grey is replaced by light blue (like Game Gear).
- Original: Original Master System color.

Known issues:
- Some frames of the Genesis are very wide and did not fit so parts had to be cut. In a few frames I changed the angle of his foot to make it fit better. In other frames the issue is not that distracting so I did not fix it.
- The altered palettes have some minor side effects. Most noticeable is his skin color, but it also affects Robotnik, monitors, the signpost and more (?).

Special thanks to:
- tailsnic for his inspiring SMS -> GG Sonic mod and instruction video.
- Maxim for explaining the tile arrangement.
- Kagesan for explaining possibilities with palettes and the jump shoetip issue.
- sverx for helping me fix the shoetip issue.
- And everybody else at smspower.org!

Used tool:
- Master Tile Converter v0.9d
- bmp2tile-0.5
- Meka 0.80-alpha
- GIMP 2.10.24
- HxD 2.5.0.0
- Lunar IPS 1.0.2
- AFS-ROM-SuiteMD

Version history:
v1.0
- First release

v1.0.1
- Fixed the checksum
- Red shoes palette is included in main patch
- Other palette patches are full patches to ensure the correct checksum and must be applied to the original rom

v1.02
- Fixed the shoetip tiles in the jump (jumppad) frame. These tiles are stored in the rom using compression.


Enjoy!

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  • Joined: 09 Jun 2014
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Post Posted: Thu Jun 17, 2021 8:53 pm
Screenshots:
Run.png (5.67 KB)
Run.png
Shield.png (1.25 KB)
Shield.png
Stand.png (5.2 KB)
Stand.png
Wait.png (2.84 KB)
Wait.png
Walk.png (4.94 KB)
Walk.png

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  • Joined: 06 Aug 2015
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Post Posted: Thu Jun 17, 2021 11:18 pm
Any difference between this version and the 1.4 of the other topic?
Thx
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Post Posted: Fri Jun 18, 2021 5:09 am
Well, nothing major was changed. But if you look closely then you will see each frame has a couple of changed pixels. It should look more clean and more detailed now.

The thing is, i had to shrink Sonic by 80%. And resizing pixelart just does not give good results in any program. I used the most basic resize method which simply removes pixels, instead of blending, but it is obviously far from perfect.
After that i did many changes manually while looking at the original Genesis version. Version 0.1.4 was already optimized but this versions even more.
One thing i was never satisfied with was his mouth and blue dot under his eye, but i believe i (finally) found the best looking solution for that now.

I hope you see some improvement :).

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  • Joined: 19 Apr 2019
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  • Location: Málaga, España
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Post Posted: Fri Jun 18, 2021 6:55 pm
Congratulations!!there is an amazing work!.Regards.
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Post Posted: Sat Jun 19, 2021 11:24 am
v1.0.1
- Fixed the checksum
- Red shoes palette is included in main patch
- Other palette patches are full patches to ensure the correct checksum and must be applied to the original rom
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  • Joined: 26 Jan 2014
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Post Posted: Mon Jun 21, 2021 3:47 pm
Page created ;) https://www.smspower.org/Hacks/SonicTheHedgehog-SMS-Genesis-Mod
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  • Joined: 09 Jun 2014
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Post Posted: Mon Jun 21, 2021 8:08 pm
Thanks Revo! :D
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  • Joined: 23 Jan 2010
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Post Posted: Tue Jun 22, 2021 1:08 am
I created a youtube video about your mod. I pointed for page created by Revo.

Congratulations.
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  • Joined: 26 Jan 2014
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Post Posted: Tue Jun 22, 2021 8:45 am
I also made a little video:

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Post Posted: Tue Jun 22, 2021 9:22 am
Revo wrote
I also made a little video:


Your video is better. Thanks.
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  • Joined: 19 Apr 2019
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Post Posted: Tue Jun 22, 2021 7:10 pm
Last edited by Ershei on Wed Jun 23, 2021 1:24 pm; edited 1 time in total
Hi guys,I've added as a test these changes to the palette to make it even more like the Sonic of Mega Drive.and it's so nice ;).
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  • Joined: 21 Oct 2015
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Post Posted: Tue Jun 22, 2021 8:32 pm
Ershei wrote
Hi guys,I've added as a test these changes to the palette to make it even more like the Sonic of Mega Drive.How about you?


WOOOOOOOOOOOOOOOW!!!
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Post Posted: Wed Jun 23, 2021 8:05 am
That looks nice! I like the contrast between green and brown.
I was not planning to change anything else but the character. I suggest you create a separate patch with all your changes like background and rings. That way you can change anything you like without asking me :)
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Post Posted: Wed Jun 23, 2021 8:42 am
Someone mentioned Sonic 2 in the youtube comment. I'll check out this game. If the tiles/frames are similar, which i expect, then it should be fairly easy to create the same patch for Sonic 2. Sonic 2 has 1 additional color to use, so it can look slightly better.

I already checked out Sonic 1 for GG. The frames are twice as small as SMS (16x24 vs 24x32), so it is very different and there are very little pixels to work with, so i have no plans for this version.
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Post Posted: Wed Jun 23, 2021 10:51 am
I looked at Sonic 2 (i've never played this game) and it is actually quite different. It has many additional animation. Like walking the loop and other animations that are not in the Genesis version.
It will need a lot of work...
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Post Posted: Wed Jun 23, 2021 1:22 pm
slogra wrote
That looks nice! I like the contrast between green and brown.
I was not planning to change anything else but the character. I suggest you create a separate patch with all your changes like background and rings. That way you can change anything you like without asking me :)


Hi Slogra.
You should not worry, I do not plan to create a patch. It was just a little home experiment as a test. Sorry if I have bothered you, it was not my intention. And the rings already came like this, I just retouched the background.
Best Regards.
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Post Posted: Wed Jun 23, 2021 7:56 pm
Here are some more screenshots with red shoes as the default color now red.
death.png (5.91 KB)
death.png
duck.png (4.74 KB)
duck.png
roll.png (5.67 KB)
roll.png
run.png (5.75 KB)
run.png
stand.png (5.2 KB)
stand.png
walk.png (5.48 KB)
walk.png

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Post Posted: Sat Jun 26, 2021 10:55 am
v1.02
- Fixed the shoetip tiles in the jump (jumppad) frame. These tiles are stored in the rom using compression.

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Sonic Genesis For Master System
Post Posted: Thu Jul 22, 2021 12:53 am
Last edited by ThatDamnCatgirl on Thu Jul 22, 2021 5:18 pm; edited 1 time in total
This is a very nice way to play Sonic 1 SMS. I wonder how they'd look in the sequel or if you want more colors to be able to work with then Chaos. I have included some mockups of how the sprite could look. Though do take it with a grain of salt.
selection (1).png (7.24 KB)
I messed around with these a little using aproximated palettes. Two has some tweaks to make it closer to the genesis, Chaos has the shine like the Genesis version of Sonic 2 along with the eye shape, Though for shits and giggles I also did Triple Trouble.
selection (1).png

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Post Posted: Thu Jul 22, 2021 1:32 pm
I'm glad you like it. Those mockups look great.

It's too bad i could not use more colors in Sonic 1.

If i use lightblue in stead of light grey then i have an extra blue available, like you first mockup. I prefered to use grey for his socks and gloves though, like sonic on the genesis.
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