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https://www.smspower.org/Hacks/Lemmings-SMS-OhNoMoreLemmings-Mod

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This is a small demo of Oh No More Lemmings for the Sega Master System.
It is a hack/mod of the original Lemmings made for the SMS Power!
Competition 2024. So far it has 5 levels and 4 different themes. I hope
to finish some additional levels *soon*.

Apply the patch to "Lemmings (UE) [!].sms"

Version 0.02:
Improved the graphics of level 3 (snow), so i dare to post a screenshot now ;).

Download v0.02 here

Somebody made a Youtube video of v0.01, so i will post it here, until Maxim has recorded a video.
The video was recorded on a 50hz Mega Drive with an Everdrive. For some reason many voice samples sound distorted though.

OhNoMoreLemmingsDemo-screenshot4.png (6.16 KB)

Lemmings-SMS-OhNoMoreLemmings-Mod-0.02.zip (142.11 KB)

Great hack. I did get some corruption on the background tiles, though. The empty black tile got a white line in the moment the level started. It looked fine while I was still previewing the level. It didn’t always appear, so I don’t really know what’s causing this.

Hmm, one of the things I did with the underlying hack was to speed up some of the slow waits around VBlank writes to slightly improve the frame rate; but everything should be good on a real SMS and was tested with Emulicious. What hardware are you using?

I’m also curious about the sample corruption in the video, does anyone else have that?

Thanks for playing Kagesan!

Unfortunately i don't have an Everdrive to test on real hardware myself.
On what hardware did you play? 50hz or 60hz?

Or did you play on an emulator? I've not seen the issue on Emulicious, Mekaw or RetroArch with PicoDrive and Sega Genesis Plus GX.

I think there might be issues on Game Gear because I tuned it to 26 cycles.

I’m playing it via Master Everdrive X7 on an SMS 1 at 60 Hz.

Great work hacking Lemmings, Slogra & Maxim.
I guess this paves the way for future hacks / level packs at some point?

The level editor was made quite a few years ago, but there’s some more hacking work to do before the game is really opened up for editing everything. I’d like to do an original levels restoration mod too - spending more ROM space to enable more faithful conversions - but some of the limitations will remain, the engine does run out of tiles for the lemmings to build/bash/mine/etc if you use too many for the layout…

Alright, i finished 9 levels in total now. While working on the new levels i also improved the existing snow and rock levels a bit.

All these first levels are extremely easy to play, so i guess you make it a bit more challenging by going for a 100% score, although even that is not very hard to do :)

Download v0.03 here

Here is a screenshot of one of the new levels:

OhNoMoreLemmingsDemo-screenshot-level8.png (5.27 KB)

Lemmings-SMS-OhNoMoreLemmings-Mod-v0.03.zip (143.19 KB)

Thank you :) I had fun playing these new levels and didn't notice anything strange besides the right shift exit animation of the Lemmings (I mentioned on Discord) repeats in level 6. This might be related to the exit door theme. Keep up the good work.

Played on a PAL SMS 1

Very good idea to port the expansion of this great game, the master system version is my favorite version of Lemmings :)

The audio was going well before uploading it to YouTube, now it's out of time :(

Nixon87 wrote

Thank you :) I had fun playing these new levels and didn't notice anything strange besides the right shift exit animation of the Lemmings (I mentioned on Discord) repeats in level 6. This might be related to the exit door theme. Keep up the good work.

Thanks! Maybe i placed tiles incorrectly by accident. Or maybe it is caused by the animation tiles that i moved from the outer sides to the center of the exit.
Perhaps i can find a workaround by moving some of these exit tiles.

weirdzod wrote

Played on a PAL SMS 1

Very good idea to port the expansion of this great game, the master system version is my favorite version of Lemmings :)

The audio was going well before uploading it to YouTube, now it's out of time :(

It took me a while to come up with this idea :p.

Thanks for the video! Great job on saving all Lemmings :)

Looks like you are having the same graphics corruption as Kagesan. So both 50 and 60 SMS1 are having this issue.

Hopefully Maxim will find a way to fix it.

But good to hear the samples are working on an SMS1 (they didn't work on a megadrive).

I can’t see any reason for the samples to fail on Mega Drive. The video of the screen corruption is useful, it seems to be when the entrance opens, so I’ll dig into that a bit.

The strangest thing about the audio corruption on the MD is that it actually sounds like the opening of the hatch. While that sound is not in the SMS game.... or maybe it is, but not used?

I’m pretty sure it’s not a sample, they stand out clearly in the ROM.

Hi Slogra and Maxim. That somebody is me. It was me that uploaded the first video 0.01.

Very impressive hack! I found this by accident when I was uploading some of Pooty's old custom made levels played by SquidgyAdam who deleted them all from his Youtube channel some years ago. I recorded them to DVD and reuploaded them and when I found this I just knew I had to share it. Not sure why the voice sample is corrupted on the Mega Drive or why some of the graphics are corrupted in that other video played on an SMS I in PAL? One thing for certain is the ''OH NO!'' when pressing the nuke is very clear! Much clearer than the original Lemmings on Master System.

The video corruption should be fixed now, but I can't easily test it. The sample issue on Mega Drive is very odd, because it's just streaming data without paging; I'd be interested to know if that's reproducible on other flash carts and also how your cart handles pcmenc roms in general - see https://www.smspower.org/forums/post130648

Okay for you Maxim I just did a test and played the same ROM 0.03 on a cheap Chinese Master System EverDrive played from the same Mega Drive using the Master System/Power Base Converter like in that video and guess what? No corrupt ''Let's Go!'' voice sample, so the Mega Drive is not to blame but the Mega EverDrive X7.

I wonder if the Pro has the same sample bug? I don't have a Pro but it would be good if we can find out if it does.

How bizarre... is there an in-game menu you can disable and see if that affects it?

On the Mega EverDrive X7 you can't bring up the in-game menu in the middle of playing an SMS game, only on Mega Drive games you can bring up in-game menu. When I recorded the 0.01 video I already had the in-game menu turned off for Mega Drive games anyway. The old legacy X7 carts don't support a Master System mode in-game menu or an OS unlike the Pro which does support a dedicated SMS OS and in game-menu which brings me back to what I mentioned above that i'd be very interested to see if the same sample glitch appears on that.

At this point it's fair to assume that the Mega Drive (Model 1 at least) is not to blame for the corrupt noise. Certain flash carts are to blame.

Here is a video of the latest build demo v0.03.

It was played on a cheap Chinese knock off Master System EverDrive on a PAL SEGA Mega Drive model 1 console using the Master System/Power Base Converter.

Because I didn't use the Mega EverDrive X7 this time, the voice sample is clear as intended.

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