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http://info.sonicretro.org/Aspect_Edit

slogra wrote

I only discovered Sonic 2 LD recently, while i was well underway with my own Sonic Genesis hack.
I absolutely love LD, it is very well done. Too bad no additional zones were added besides Emerald Hill. How were the level made? There is no level editor, right?

There was one made specifically for that hack, it's linked above by Tom, you use it with a disassembled rom. As far as I remember It only edits layouts, not objects and Loops are hard coded to certain levels, moving the graphic for the loop doesn't move the logic so they are pretty fixed.

KeyperOS wrote

This might be a bit premature but, have you tried to see if your mod is compatible with the FM-music mod?

I tested here with the FM sound patch playing until the third stage and everything worked normally, but the songs are the same as in the normal game (with FM).

The FM music mod should be compatible (except for the checksum) because it is isolated to the music engine. This may change in the future if I add music editing to the editor.

The "final" release v1.04 is here!

You can find it in the first post of this topic.
https://www.smspower.org/forums/18542

Not too much has changed since 1.03 beta. The biggest changes are the Robotnik sprite and the ending music. Besides that a lot of very small tweaks.

slogra wrote

The "final" release v1.04 is here!

You can find it in the first post of this topic.
https://www.smspower.org/forums/18542

Not too much has changed since 1.03 beta. The biggest changes are the Robotnik sprite and the ending music. Besides that a lot of very small tweaks.

Congratulations Slogra! It was just amazing!

Good news everybody! Physical copies can be preordered now.
Please contact Révo for more information: [email protected]

Revo's promotion movie (you gotta watch this):

sonic_genesis_box.jpg (446.2 KB)

Haha, fantastic! How can anyone resist a grown man in a blue hedgehog costume - what salesmanship!

I just finished it and it is great, congrats! Only thing I found odd is that after you get hit, the time you're invincible seems shorter than on the original. Was it changed?

It was not changed intentionally. I just compared and to me it seems the same.

It’s a good idea to make it editable though…

Interesting, there are spikes in labyrinth zone that I was not able to get out after the first hit, that's I thought it was changed.

Hey, I'm new here and made an account to post about this hack. I think it's great! However, I noticed Sonic's sprites are stretched when viewed on a standard TV. I decided to go back and resize the sprites properly with the stretched resolution in mind and got these. You can keep the sprites the way they are if you want, but maybe consider this as no sprites get cut off by the tile bounds.

sonic genesis sms rescaled sprite.png (21.19 KB)

Hey, congrats for finishing the mod!

One thing I noticed is that when playing in an emulator, it appears that the game intro is a bit stretched unless a 4:3 aspect ration is force-selected.

I compared it with the older Sonic Genesis v1.03 beta5.3.ips and that one has the "correct" aspect ratio (please see attachments).

As far as I can tell, the in-game aspect ratio is unaffected.

Also, just as an FYI, I tried to do the same "FM Music+Genesis" mod combo and while it works just fine AFAICT, there is a strange artifact that appears a couple seconds after the intro starts, when the "PRESS BUTTON" message would normally start flashing (see screenshot).

Sonic Genesis 103 Intro.png (6.44 KB)

Sonic Genesis 104 Intro.png (7.8 KB)

Sonic Genesis 104 Intro 4-by-3.png (6.87 KB)

I made the title graphics as big as possible. This dimension of the image fitted best. It compensates for the aspect ratio a little bit.

The screen is heavily optimized to get the most out of the limited number of tiles.
Redoing the screen is a lot of work, and the result will be a smaller image, which was not my intention in the first place.

V1.03 uses the dimensions of the original game. The tilemap is the same, only the tiles were swapped by new ones. It is smaller, and that is only correct in pal.
So your "correct" 4:3 ntsc screenshot of v1.03 is not a perfect circle either, it is too tall.

Most in-game graphics are direct copies of the Genesis/MD graphics. All graphics are based 8x8 pixels, or multiples like 16x16 and 32x32 etc. In other words: squares. Again i want graphics to be as big as possible and filled that space, and not make it smaller (thinner) to compesate the aspect ratio.

Anyway, aspect ratio is a huge pain i the a$$ so i did not consider it too much :).

I did not take any measured to make the game compatible with the FM mod. I'm amazed it works at all. The FM mod has a rewritten sound driver. Also the songs are rewritten in a different format (both fm and psg versions), which means that if you apply the FM mod you will not hear my versions of the songs as those are overwritten.
The gfx glitch is very unexpected and strange.

You can use the enhanced sound option in Dega to make psg sound more like fm.

Good thing i used quotes around final last version, because v1.05 is the real final version. :)

Direct link: https://www.smspower.org/forums/download.php?id=22095

See also the first post of this topic.

- The title screen has been improved.
- Unfortunately the easter egg had to go to make space for the title screen graphics. So no need to search for it :)
- The Star Light music in the ending medley has been improved. It was missing THE most important high note.
- The Labyrinth lead "guitar" volume envelope is slightly more staccato now.

0 title screen v1.05.png (8.33 KB)

Came here after seeing a side by side youtube video of your project versus the original. Amazing work mate!!!

Thanks Blake. I couldn't have done without the very helpful people on this forum.

I love to watch those (direct) comparison videos on youtube too!

I recorded a video a few weeks ago, too, and I wanted to upload it on Youtube, but I made a mistake in GHZ2, and so I'm not sure if I should upload it or not, which is sad because I really liked how it turned out for the most part :(

Obviously, this is amazing, and I came here to say that.

This could work so well in many other games, the terrible graphics in Ghouls and Ghosts come to mind!

Thanks from this great hack (beside I feel weird about Star Light/Sky Base zone) but.....
Someday I mixed your hack (1.05) with an hack from same game with FM sound and this cause an bug in title screen. I didn't know why this happen

Sonic The Hedgehog Genesis(1.05+FM)000.png (6.98 KB)

Yup, it has been mentioned before in this topic.
Besides that, the fm hack is not compatible with this hack because it play the original sms sonic tunes, not the ones of the Genesis hack.

Well, about Star Light. I could not swap levels, and i did not want to because the Star Base/Star Light levels are the most difficult and of course include the final boss.

Hope you still had fun playing this hack.

I decided to upload my gameplay video, and... it's not been easy, for some reason I couldn't get the audio to synchronise with the video (I'm not blaming you, of course, it was just Dega being stupid, the one and only emulator without proper vfw support), and it took me a good part of today to fix it. And the best part is that as soon as I uploaded it on Youtube, I was hit by the ever-present bogus copyright claim (two of them, in fact), so all my work to fix the audio might have been for nothing if I lose the disputes and I have to silence it anyway.

So, no, I don't have a link to share with you at this time, I just wanted to vent my frustration :(

KeyperOS wrote

Hey, congrats for finishing the mod!

One thing I noticed is that when playing in an emulator, it appears that the game intro is a bit stretched unless a 4:3 aspect ration is force-selected.

I compared it with the older Sonic Genesis v1.03 beta5.3.ips and that one has the "correct" aspect ratio (please see attachments).

As far as I can tell, the in-game aspect ratio is unaffected.

Also, just as an FYI, I tried to do the same "FM Music+Genesis" mod combo and while it works just fine AFAICT, there is a strange artifact that appears a couple seconds after the intro starts, when the "PRESS BUTTON" message would normally start flashing (see screenshot).

Hey man, could you possibly release said FM Hack? i'd be interested in ripping the music for my collection of sonic music. would fit nicely alongside the regular sonic FM hack.

Applying the FM hack to Sonic Genesis will not give you FM Genesis music, it will be the same as the FM hack alone.

Author	Message
Tom Joined: 16 May 2002 Posts: 1305 Location: italy	Posted: Wed Apr 27, 2022 12:59 pm
Tom Joined: 16 May 2002 Posts: 1305 Location: italy	http://info.sonicretro.org/Aspect_Edit

Emrabt Joined: 17 Aug 2021 Posts: 78	Posted: Wed Apr 27, 2022 1:28 pm
Emrabt Joined: 17 Aug 2021 Posts: 78	slogra wrote I only discovered Sonic 2 LD recently, while i was well underway with my own Sonic Genesis hack. I absolutely love LD, it is very well done. Too bad no additional zones were added besides Emerald Hill. How were the level made? There is no level editor, right? There was one made specifically for that hack, it's linked above by Tom, you use it with a disassembled rom. As far as I remember It only edits layouts, not objects and Loops are hard coded to certain levels, moving the graphic for the loop doesn't move the logic so they are pretty fixed.

darthvaderx Joined: 07 May 2011 Posts: 29	Posted: Tue May 10, 2022 10:39 pm
darthvaderx Joined: 07 May 2011 Posts: 29	KeyperOS wrote This might be a bit premature but, have you tried to see if your mod is compatible with the FM-music mod? I tested here with the FM sound patch playing until the third stage and everything worked normally, but the songs are the same as in the normal game (with FM).

Maxim Site Admin Joined: 19 Oct 1999 Posts: 14271 Location: London	Posted: Wed May 11, 2022 5:59 am
	The FM music mod should be compatible (except for the checksum) because it is isolated to the music engine. This may change in the future if I add music editing to the editor.

slogra Joined: 09 Jun 2014 Posts: 287	Posted: Sat Aug 13, 2022 9:13 am
slogra Joined: 09 Jun 2014 Posts: 287	The "final" release v1.04 is here! You can find it in the first post of this topic. https://www.smspower.org/forums/18542 Not too much has changed since 1.03 beta. The biggest changes are the Robotnik sprite and the ending music. Besides that a lot of very small tweaks.

EmuBoarding Joined: 06 Aug 2015 Posts: 135	Posted: Mon Aug 15, 2022 5:55 am
EmuBoarding Joined: 06 Aug 2015 Posts: 135	slogra wrote The "final" release v1.04 is here! You can find it in the first post of this topic. https://www.smspower.org/forums/18542 Not too much has changed since 1.03 beta. The biggest changes are the Robotnik sprite and the ending music. Besides that a lot of very small tweaks. Congratulations Slogra! It was just amazing!

slogra Joined: 09 Jun 2014 Posts: 287	Posted: Fri Sep 09, 2022 9:50 am
slogra Joined: 09 Jun 2014 Posts: 287	Good news everybody! Physical copies can be preordered now. Please contact Révo for more information: [email protected] Revo's promotion movie (you gotta watch this): sonic_genesis_box.jpg (446.2 KB)

willbritton Joined: 06 Mar 2022 Posts: 255 Location: London, UK	Posted: Fri Sep 09, 2022 9:59 am
	Haha, fantastic! How can anyone resist a grown man in a blue hedgehog costume - what salesmanship!

PrOfUnD Darkness Joined: 29 Jun 1999 Posts: 366 Location: Brazil	Posted: Sun Sep 11, 2022 1:41 am
	I just finished it and it is great, congrats! Only thing I found odd is that after you get hit, the time you're invincible seems shorter than on the original. Was it changed?

slogra Joined: 09 Jun 2014 Posts: 287	Posted: Sun Sep 11, 2022 3:04 pm
slogra Joined: 09 Jun 2014 Posts: 287	It was not changed intentionally. I just compared and to me it seems the same.

Maxim Site Admin Joined: 19 Oct 1999 Posts: 14271 Location: London	Posted: Sun Sep 11, 2022 4:25 pm
	It’s a good idea to make it editable though…

PrOfUnD Darkness Joined: 29 Jun 1999 Posts: 366 Location: Brazil	Posted: Mon Sep 12, 2022 6:33 am
	Interesting, there are spikes in labyrinth zone that I was not able to get out after the first hit, that's I thought it was changed.

panoramhusky Guest	Posted: Mon Oct 03, 2022 6:37 pm
panoramhusky Guest	Hey, I'm new here and made an account to post about this hack. I think it's great! However, I noticed Sonic's sprites are stretched when viewed on a standard TV. I decided to go back and resize the sprites properly with the stretched resolution in mind and got these. You can keep the sprites the way they are if you want, but maybe consider this as no sprites get cut off by the tile bounds. sonic genesis sms rescaled sprite.png (21.19 KB)

KeyperOS Joined: 09 Jan 2022 Posts: 22	Posted: Sun Oct 09, 2022 5:31 pm
KeyperOS Joined: 09 Jan 2022 Posts: 22	Hey, congrats for finishing the mod! One thing I noticed is that when playing in an emulator, it appears that the game intro is a bit stretched unless a 4:3 aspect ration is force-selected. I compared it with the older Sonic Genesis v1.03 beta5.3.ips and that one has the "correct" aspect ratio (please see attachments). As far as I can tell, the in-game aspect ratio is unaffected. Also, just as an FYI, I tried to do the same "FM Music+Genesis" mod combo and while it works just fine AFAICT, there is a strange artifact that appears a couple seconds after the intro starts, when the "PRESS BUTTON" message would normally start flashing (see screenshot). Sonic Genesis 103 Intro.png (6.44 KB) Sonic Genesis 104 Intro.png (7.8 KB) Sonic Genesis 104 Intro 4-by-3.png (6.87 KB)

slogra Joined: 09 Jun 2014 Posts: 287	Posted: Mon Oct 10, 2022 8:32 am
slogra Joined: 09 Jun 2014 Posts: 287	I made the title graphics as big as possible. This dimension of the image fitted best. It compensates for the aspect ratio a little bit. The screen is heavily optimized to get the most out of the limited number of tiles. Redoing the screen is a lot of work, and the result will be a smaller image, which was not my intention in the first place. V1.03 uses the dimensions of the original game. The tilemap is the same, only the tiles were swapped by new ones. It is smaller, and that is only correct in pal. So your "correct" 4:3 ntsc screenshot of v1.03 is not a perfect circle either, it is too tall. Most in-game graphics are direct copies of the Genesis/MD graphics. All graphics are based 8x8 pixels, or multiples like 16x16 and 32x32 etc. In other words: squares. Again i want graphics to be as big as possible and filled that space, and not make it smaller (thinner) to compesate the aspect ratio. Anyway, aspect ratio is a huge pain i the a$$ so i did not consider it too much :). I did not take any measured to make the game compatible with the FM mod. I'm amazed it works at all. The FM mod has a rewritten sound driver. Also the songs are rewritten in a different format (both fm and psg versions), which means that if you apply the FM mod you will not hear my versions of the songs as those are overwritten. The gfx glitch is very unexpected and strange. You can use the enhanced sound option in Dega to make psg sound more like fm.

slogra Joined: 09 Jun 2014 Posts: 287	Posted: Tue Nov 01, 2022 11:44 am
slogra Joined: 09 Jun 2014 Posts: 287	Good thing i used quotes around final last version, because v1.05 is the real final version. :) Direct link: https://www.smspower.org/forums/download.php?id=22095 See also the first post of this topic. - The title screen has been improved. - Unfortunately the easter egg had to go to make space for the title screen graphics. So no need to search for it :) - The Star Light music in the ending medley has been improved. It was missing THE most important high note. - The Labyrinth lead "guitar" volume envelope is slightly more staccato now. 0 title screen v1.05.png (8.33 KB)

Blake00 Joined: 26 Sep 2018 Posts: 56 Location: South Australia	Posted: Tue Dec 06, 2022 4:10 am
	Came here after seeing a side by side youtube video of your project versus the original. Amazing work mate!!!

slogra Joined: 09 Jun 2014 Posts: 287	Posted: Wed Dec 07, 2022 9:10 pm
slogra Joined: 09 Jun 2014 Posts: 287	Thanks Blake. I couldn't have done without the very helpful people on this forum. I love to watch those (direct) comparison videos on youtube too!

Tom Joined: 16 May 2002 Posts: 1305 Location: italy	Posted: Thu Dec 08, 2022 12:26 pm
Tom Joined: 16 May 2002 Posts: 1305 Location: italy	I recorded a video a few weeks ago, too, and I wanted to upload it on Youtube, but I made a mistake in GHZ2, and so I'm not sure if I should upload it or not, which is sad because I really liked how it turned out for the most part :(

rotherss Joined: 26 Dec 2022 Posts: 1	Posted: Mon Dec 26, 2022 9:38 pm
rotherss Joined: 26 Dec 2022 Posts: 1	Obviously, this is amazing, and I came here to say that. This could work so well in many other games, the terrible graphics in Ghouls and Ghosts come to mind!

Hikaruon86 Joined: 03 Jan 2023 Posts: 3	Posted: Tue Jan 03, 2023 10:15 pm
Hikaruon86 Joined: 03 Jan 2023 Posts: 3	Thanks from this great hack (beside I feel weird about Star Light/Sky Base zone) but..... Someday I mixed your hack (1.05) with an hack from same game with FM sound and this cause an bug in title screen. I didn't know why this happen Sonic The Hedgehog Genesis(1.05+FM)000.png (6.98 KB)

slogra Joined: 09 Jun 2014 Posts: 287	Posted: Tue Jan 03, 2023 11:17 pm
slogra Joined: 09 Jun 2014 Posts: 287	Yup, it has been mentioned before in this topic. Besides that, the fm hack is not compatible with this hack because it play the original sms sonic tunes, not the ones of the Genesis hack. Well, about Star Light. I could not swap levels, and i did not want to because the Star Base/Star Light levels are the most difficult and of course include the final boss. Hope you still had fun playing this hack.

Tom Joined: 16 May 2002 Posts: 1305 Location: italy	Posted: Thu Jan 05, 2023 4:49 pm
Tom Joined: 16 May 2002 Posts: 1305 Location: italy	I decided to upload my gameplay video, and... it's not been easy, for some reason I couldn't get the audio to synchronise with the video (I'm not blaming you, of course, it was just Dega being stupid, the one and only emulator without proper vfw support), and it took me a good part of today to fix it. And the best part is that as soon as I uploaded it on Youtube, I was hit by the ever-present bogus copyright claim (two of them, in fact), so all my work to fix the audio might have been for nothing if I lose the disputes and I have to silence it anyway. So, no, I don't have a link to share with you at this time, I just wanted to vent my frustration :(

Lem Joined: 08 Jan 2023 Posts: 1	Posted: Sun Jan 08, 2023 11:46 am
Lem Joined: 08 Jan 2023 Posts: 1	KeyperOS wrote Hey, congrats for finishing the mod! One thing I noticed is that when playing in an emulator, it appears that the game intro is a bit stretched unless a 4:3 aspect ration is force-selected. I compared it with the older Sonic Genesis v1.03 beta5.3.ips and that one has the "correct" aspect ratio (please see attachments). As far as I can tell, the in-game aspect ratio is unaffected. Also, just as an FYI, I tried to do the same "FM Music+Genesis" mod combo and while it works just fine AFAICT, there is a strange artifact that appears a couple seconds after the intro starts, when the "PRESS BUTTON" message would normally start flashing (see screenshot). Hey man, could you possibly release said FM Hack? i'd be interested in ripping the music for my collection of sonic music. would fit nicely alongside the regular sonic FM hack.

Maxim Site Admin Joined: 19 Oct 1999 Posts: 14271 Location: London	Posted: Sun Jan 08, 2023 11:54 am
	Applying the FM hack to Sonic Genesis will not give you FM Genesis music, it will be the same as the FM hack alone.

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