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Sonic 2: Zen Island An in-progress hack of Sonic 2 SMS

#1 User is offline Yoshister 

Posted 08 January 2017 - 12:30 AM

  • Posts: 5
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  • Location:Georgia, United States
  • Project:Sonic 2 Zen Island
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I've been trying to make a half-decent Sonic 2 SMS since 2015, and I feel like I've made something half decent for once. :p
Sonic 2 Zen Island is a level, palette, and music hack of Sonic 2 for the Sega Master System.

An actual list of changes
-The title screen, level preview, and score tally screens now have black backgrounds instead of dark blue ones.
-Each act now has its own palette (Generally it's a day-to-night cycle over the three acts in a zone).
-The signpost now shows Sonic where Robotnik used to be and vice versa.
-The signpost are now uses black in place of yellow.
-Underground Zone Acts 1-3, Sky High Zone Acts 1-3, Aqua Lake Zone Acts 1 and 3, and Green Hills Zone Act 1 have completely different tile layouts (Some with different level sizes).
-Sonic's sprites have been edited to make him more expressive.
-Loops are glitchy for some reason (Sonic inexplicably goes in the wrong directions while on the loop).
-There's also no hang-gliders, but that's because most object layouts are incomplete.
-Each third act (Sans Scrambled Egg Zone and Crystal Egg Zone) now uses a previously unused song.
-The Level Complete and Boss themes are lower pitched.
-The credits are altered to include the people listed in the "Thanks to following people" section.


To-do list
-Finish object layouts
-Finish tile layouts for GMZ, SEZ, and CEZ.
-Create new music rather than altering the music already in the game.
-Make GHZ the first zone.
-Make UGZ the fourth zone.
-Edit the credits to include the people who helped with this hack that aren't already in them.

Thanks to following people
-Glitch (For making Aspect Edit, the program I used to edit the layouts and palettes, along with taking pictures of the level layouts)
-Mikel (For making this guide on how to add dynamic palettes: http://info.sonicret..._to_Sonic_2_SMS)
-InvisibleUp (For making a post on explaining how to use Aspect Edit: https://forums.sonic...showtopic=32893)
-RavenFreak (For making a list of level sizes and tile off-sets at this page: https://forums.sonic...showtopic=32893)
-MrCat (For making Sonic 2 ReMastered, the hack that rejuvenated my interest in working on this hack)

Download
Download the hack here

Video
https://www.youtube....h?v=EkbWUBuSngc

Updates
1/9/2017
Version 0.15 is out now.
Changes
-ALZ2 now has a unique tile layout. Also, there's a secret short-cut. If you can beat my time of 13 seconds, you'll get some kind of reward (A virtual cookie perhaps?).
-SHZ3's palette has been edited to create an evening sky, rather than the mid-day sky it used to have.
-Two unused monitor arts have been edited. I plan on incorporating them into the new levels once their code is implemented.

1/11/2017
Version 0.2 is out now.
Changes
-GHZ2 now has a unique tile layout.
-GHZ3 now has a unique tile layout.

1/14/2017
Version 0.25 is out now.
Changes
-UGZ1 now has a new tile layout. (The old one needed was kinda bleh tbh.)
-UGZ3's layout has been altered slightly to remove the trial-and-error the original had. Also there's some rings in this act now.

2/6/2017
Version 0.3 is out now.
Changes
-UGZ1's tile layout has been overhauled again. I can't seem to settle on a layout. :p
-UGZ2's tile layout has been slightly altered to make the first lava pit fairer.
-ALZ1's tile layout has been slightly altered to
-Make the Easter egg text easier to read.
-Make two monitors in walls possible to get.
-Make an alternate path possible to get through.
-ALZ2's tile layout has been slightly altered to
-Remove potential softlocks from certain springs and a mandatory pipe exit.
-Make a certain duet of springs give the player a ton of speed.


4/5/2017
Version 0.33 is out now.
Changes
I changed some level layouts and create a new layout for Gimmick Mountain Zone Act 2.

6/14/2017
Version 0.335 is out now.
Changes
Sky High Zone Act 1 has a new layout.
This post has been edited by Yoshister: 14 June 2017 - 12:41 AM

#2 User is offline SonicBurst 

Posted 08 January 2017 - 06:20 PM

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Hey, this looks really good! It's very awesome to see some 8 Bit hacks around. I liked the 8 bit games and in my opinion, they need some attention. Good job on doing this, keep working on it!

#3 User is offline Ravenfreak 

Posted 08 January 2017 - 06:54 PM

  • Incineroar is the best
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Sonic's loop motion data is hard coded, so that's why the loops don't work right. For music hacking, since Sonic 2 actually uses a almost identical sound driver that's found in most of the 16-bit games, music hacking won't be too difficult if you know what you're doing. (I however haven't mastered the art of music hacking... xD) It's always nice to see more 8-bit hacks. ^_^ I also like Sonic's sprites too, they look much better than his default sprites from the game.

#4 User is offline Yoshister 

Posted 07 July 2017 - 11:44 PM

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  • Project:Sonic 2 Zen Island


Hack's (probably) cancelled.

#5 User is offline MarkeyJester 

Posted 08 July 2017 - 06:36 AM

  • The architect of the universe, didn't build a stairway, leading nowhere.
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I don't think you should cancel the hack because the final boss crashes, there's always a way around it. You should keep at it!

Regardless though, I hope you actively enjoyed making it, and as others have said, we need more 8-bit hacks.

I did notice in the comments you mentioned a Tails in Sonic 2 SMS hack? That would be stunning! Absolutely stunning! Please do~

....please~

#6 User is offline Eduardo Knuckles 

Posted 09 July 2017 - 07:37 AM

  • Not a loved one, but the most hated person.
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What a reason, huh?
The reason: The last boss crashes. :v
One more hack is between the dozen cancelled hacks in the community. As I already expected, sorry to be direct this way. :P

Seriously... Sorry if I sound rude, but you don't think you shutdown the project too much easily? You can't just stop the project just because you found a problem you're not managing to fix, since there's even a lot of people in the community which may help you with this.

#7 User is offline Ravenfreak 

Posted 09 July 2017 - 08:04 AM

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There has to be a reason why the final boss crashes. What else was changed besides layouts, music, slight art changes, and palettes? Either way, if you don't feel like working on the project that's fine. You shouldn't do something unless you're having fun. You should never feel pressured into completing a hack, even if people beg you to finish it. Rom hacking is a fun hobby, that can be tedious. Good luck with future projects!

#8 User is offline chacanger 

Posted 09 July 2017 - 03:51 PM

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I must admit, when I started my Master System hack I got fed up doing it at one point, mainly because there was so little information about ROM hacking for Master System games opposed to the Mega Drive ones, but I found that rather than give up on it completely, I just shelved it for a while, eventually I got back into it and I managed to fix some of the technical hurdles I had.

So it's worth not giving up on it, but maybe return to it at a later stage, even if it's a few years down the line.

I noticed some of the comments that people posted in that Razor & Zenon YouTube video where really dumb and people had no appreciation for the work you've put into this. (Then again it is the internet and people will be people)

#9 User is offline Yoshister 

Posted 09 July 2017 - 05:00 PM

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  • Joined: 04-January 17
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  • Location:Georgia, United States
  • Project:Sonic 2 Zen Island
In hindsight, cancelling the hack because the final boss kept crashing was a pretty silly reason to cancel this hack.
Especially since Robotnik is only the final boss if you collect all the emeralds. If you don't collect them, Silver Sonic is the final boss.

And he doesn't crash the game.


So I guess I have a workaround (of sorts) Robotnik crashing the game: No chaos emeralds (Which is easy to do since they're just objects).
Sure it cuts out an entire zone and forces the bad ending, but it'll suffice until I figure out what causes the crash (Which I'm fairly confident has to do with the lightning attack).
So the hack isn't cancelled anymore.

Also I felt awful for not finishing it since I put so much time into it already.

Plus I highly doubt much more research will go into hacking these SMS games if nobody makes any SMS hacks using the tools and knowledge we have.

Here's the latest version. Underground Zone's tile layouts have been made less unfair and ring heavy, plus that new CEZ2 layout.

If anyone wants to help create new art and/or music for S2ZI just let me know.

#10 User is offline nineko 

Posted 10 July 2017 - 09:02 AM

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Just so you know, someone posted about your hack on smspower, you might want to register an account there for two reasons. The second is that smspower is full of people who know how to deal with Z80 programming and whatnot, so you can ask for their help and I'm sure someone will be able to help you with your issue.

#11 User is offline Yoshister 

Posted 10 July 2017 - 03:15 PM

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  • Location:Georgia, United States
  • Project:Sonic 2 Zen Island

View Postnineko, on 10 July 2017 - 09:02 AM, said:

Just so you know, someone posted about your hack on smspower, you might want to register an account there for two reasons. The second is that smspower is full of people who know how to deal with Z80 programming and whatnot, so you can ask for their help and I'm sure someone will be able to help you with your issue.

Huh, I had no idea.

Thanks for letting me know. :v
This post has been edited by Yoshister: 10 July 2017 - 03:15 PM

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