Is Gunstar Heroes Possible on SNES?

Continuing with my idea for a series of articles looking at both old and new Sega Genesis games and analysing whether they could run on SNES or not–I’m here to prove they can by providing examples of similar feats being achieved in actual SNES games, both old and new titles, plus any modern demos and the like where necessary–the next game I want to look at is Gunstar Heroes.

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Is XenoCrisis Possible on SNES?

Continuing with my idea for a series of articles looking at both old and new Sega Genesis games and analysing whether they could run on SNES or not–I’m here to prove they can by providing examples of similar feats being achieved in actual SNES games, both old and new titles, plus any modern demos and the like where necessary–the next game I want to look at is XenoCrisis.

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Sonic on SNES vs Genesis

So, just a quick thought and a simple example demonstrating how a SNES version of Sonic the Hedgehog could improve the visuals of the game in some areas to give the SNES version a very nice look of its own, despite it not having as wide a view of the level as the Genesis version:

The image above shows how, along with adding a little more colour into the GUI, a nice gradient on the background sky, and making the clouds look a little softer using some more colours, the SNES version could also use that extra third background layer along with a bit of colour math to have a really nice reflection and semi-transparency effect on the water. And, it’s important to point out that not only does it look like its reflecting the scenery there, but the actual shimmering water would be on a seperate layer from the reflection of the hills and would be scrolling at a different speed too, which would add some really nice extra depth to the parallax also. Oh, I also used the Sonic Mania character design and GUI icon for him too, just because.

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Is Castlevania: Bloodlines Possible on SNES?

Continuing with my idea for a series of articles looking at both old and new Sega Genesis games and analysing whether they could run on SNES or not–I’m here to prove they can by providing examples of similar feats being achieved in actual SNES games, both old and new titles, plus any modern demos and the like where necessary–the next game I want to look at is Castlevania: Bloodlines.

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Is The Cursed Knight possible on SNES?

I’ve heard a lot of people claim in recent times that the SNES couldn’t run this Genesis game or that Genesis game because it’s too complex for the system or it would just suffer slowdown on SNES because of its “slow” CPU, etc, which simply isn’t true in 99% of cases. And, not only are these assertions coming from hadcore Genesis fans, they’re even coming from SNES fans at times too, which is just very disappointing.

So, here’s an idea for a series of articles looking at both old and new Sega Genesis games and analysing whether they could run on SNES or not–I’m here to prove they can–by providing examples of similar feats being achieved in actual SNES games, both old and new titles, plus any modern demos and the like where necessary.

The first game I want to try this with is The Cursed Knight, just because I was watching a playthrough of it when this idea popped into my head.

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Modern SNES Games and Demos

There’s nowhere near enough happening in the SNES indie/homebrew development scene right now imo, especially when compared to how active the Genesis scene is in comparison, but there is some new stuff out there, and I just thought I’d showcase some of it here.

Note: Some of these examples may be a few years old, but they’re still new games for SNES that came out decades after it was no longer officially on the market. And some of them may be barely more than simple concept tests, or possibly just glorified ROM hacks, but I still think they’re worth covering here.

Without further ado, let’s begin:

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Idea for cool 3D effect on SNES

​So, I’ve just considered that Mode 7 also uses 8bpp 256-colours like Mode 3, which means you could create all kinds of pseudo-3D effects alongside the 8bpp 256-colour palette cycling I’ve mentioned previously for some amazing results.

My first idea is a 3D waterfall effect that combines the kind of thing Kulor is doing below along with the palette cycling to have the water animated and actually streaming down the 3D scene too:

Note: I sent Kulor a wee message about potentially adding in additional shading to the wall sections of his scene that aren’t flat, where there would be less light hitting them (assuming the light source in the scene is somewhere above and in the distance), which would sell the 3D effect even more, and I would definitely apply that to the waterfall scene too.

So, imagine a multi-level waterfall plus some landscape sections that’s rendered similarly to Kulor’s scene, which could be in a shump level where you either fly up the scene over the waterfall like in Kulor’s example or horizontally across the scene as in most shmups.

Here’s a simple scribble of the idea I had that I jotted down a while back:

image.thumb.jpeg.ca18897eb5f8fc4e0a3767742012a0a7.jpeg

And here’s a very basic example of moving across a Mode 7 water background, just to hint at how the side-scrolling version might start, but it would be a lot more visually appealing and sophisticated as I imagine it:

Now, the Mode 7 tilemap would consist of what looks like some patches of brown ground or rocky areas broken up by water sections that are drawn as if they are flowing down parts of the scene, so it’s not all just water. Everything is technically static outside of the actual entire scene scrolling relative to the player, but the water is animated as flowing using the palette cycling. This way, you can have the pseudo-3D scene scrolling entirely in whatever direction or even completely static, and the water would still flow correctly irrespective.

Super Off Road: The Baja comes to mind for the general effect, where the road there would be replaced by the flowing water in my example, and the height difference between each flat and vertical section of the scene would be larger and more pronounced like Kulor’s example, to really emphasize the 3D effect of it being a waterfall flowing over land areas and cascading down walls and the like:

Also, as seen in Mark Ferrari’s examples, you could even bake in the animated mist at the bottom of the waterfall sections using the palette cycling too, and maybe even a few sections with some swaying tufts of grass here and there (7:30):

And, because this is all currently done entirely with backgrounds, there would also be plenty of sprites left to use some of them for little scaling rocks and tufts of grass at points, so the whole scene has a little more 3D height and depth too. A bit like scene in Panorama Cotton on Genesis, but maybe a bit more subtle and taking up less sprites overall, so there’s plenty left for the actual player and ships and so on (from 6:24):

In fact, that Panorama Cotton level above with the water is kinda a much more simplified-looking version of what I’m thinking about actually (at least for the vertically scrolling version), where the water would look much nicer and the landscape would both be able to be fully textured and have big sections where it drops down before going flat again and so on, all because of how Mode 7 works.

On top of that, any part of the scene above the Mode 7 waterfall would be a background mode switch and could use say the full three layers of Mode 1 for some overlapping mountains and clouds in the distance and have lots of line/row scrolling applied to really sell the whole 3D effect of the scene even more. And, because I think it’s possible to do this based on chat in SNESdev and also this, it could even be that the main sky and clouds are done with their own Mode 7 section too, and made to scale towards the view much like this lovely effect (at 22:48):

I think that would create an amazing 3D effect on SNES. And, because it’s ultimately just a “relatively simple” Mode 7 effect plus palette cycling (and the palette cycling really doesn’t cost much at all), it could be done alongside a hectic shump or whatever and just really make the SNES look like it’s doing something very impressive visually.

So, there it is, it’s out there. If I could program for SNES then I would implement this into my own shump tests, but I can’t, and I can’t do most of this in Game Maker 8.1 mockups either, so I leave it in the ether for someone else to try if it so takes their fancy.

Note: If anyone wants to talk to me more on this, give me a shout. And I’d be up for doing the art too.

And here are my own tests again, just in case you’re wondering if I have a clue what I’m talking about and/or any artistic skills whatsoever:

“Blast Processing”, the reality. . . .

As it turns out, “Blast Processing” really was just total marketing spiel back in the day, even if the Genesis could technically do some stuff under the hood that can now be sort of linked to it decades later.

“The fact is that Blast Processing is such a hardcore, low-level application of the Mega Drive hardware that, astonishingly, it was never used in any shipping games and only in recent years has the technique been successfully mastered. And even then, its actual application in games is severely limited, with some interesting, but not exactly game-changing results … But secondly, and perhaps more pressingly, Blast Processing essentially uses the entirety of the 68000’s CPU time. You can run Blast Processing on a Mega Drive game, but you’d be unable to run anything with it … So it’s useless for standard cartridge games [other than for static high-colour images] … Throughout the machine’s lifetime, clever coding produced an almost generational leap in the effects seen in Mega Drive titles – but Blast Processing, unfortunately, wasn’t one of them.” – Eurogamer

Here’s a Digital Foundry video of what real “Blast Processing” is: 

There are also some other additional limitations and drawbacks to this mode that aren’t metioned in the video above, such as a lower horizontal resolution with double-wide pixels, some glitchy pixels, a stalled CPU and out of action sound processor, the disabling of scroll planes and an inability to display sprites, etc, which I’ve not seen/heard anyone mention in the past when talking about “Blast Processing” on the Genesis, especially when using it to suggest the console is capable of something the SNES isn’t, but they are covered nicely in this video:

So, it’s definitely interesting that Genesis can even do higher colour images in the first place, but some random hacker pulling off some random hack decades down that line, a hack that clearly wasn’t what Sega was trying to convince all the Genesis and indeed SNES fans of when it marketed “Blast Processing” to them as some kind of Genesis secret sauce that makes its games run faster than those on SNES, is nothing more than straight-up lying.

But, hey, the high-colour images do looks half-decent for what they are, at least based on the clips in the video footage above. Although, it would be nice if I could find some examples of clean full-screen images of “Blast Processing” in action somewhere online to check out.

Edit: I managed to get the images from the demo that’s linked in the Digital Foundry video:

Not sure what the big bars of solid colour at the bottom of each image are though.

Here’s some standard SNES 256-colour images for comparison:

Note: Any black bars or borders in the SNES images are just me being lazy and not finding images that fit its aspect ratio properly before converting them to display in the SNES’ specifications.

What I’d like to see in a SNES Mini 2

So, if Nintendo was to make a SNES Mini 2, I’d like it to be pretty much the same as before with a bunch of classic SNES digital titles pre-installed, although maybe with the SNES Jr. model this time to easily differentiate it from the first one (I guess):

Along with one major addition, which would be a working [mini] cartridge slot that actually takes [mini] compilation carts of classic SNES games in a similar vain to the Evercade VS: https://evercade.co.uk/vs/

This would mean publishers like Nintendo, Capcom, Konami, Square-Enix, Namco, Atari, etc, could release their own compilation carts of classic SNES games in modern times and possibly even make some brand new games for it too.

And, in an ideal world, Nintendo would actually release proper development documentation, finally, and maybe even some kind of simple and very user-friendly software developement tools to go along with this, so indie developers could also build their own SNES Mini titles relatively easily too, which could be via a website or even built into the system directly in a similar vain to the Pico-8: https://www.lexaloffle.com/pico-8.php

At the bare minimun though, just having a working [mini] cartridge slot allowing additional physical [mini] games to be plugged in could be a game-changer in the Mini category imo.

I think that could take a new SNES Mini 2 from being another cool little stocking filler to something potentially very special, and maybe even give birth to a modern SNES Mini console/game market category in its own right.

Note: An important caveat here is that I think any new games made for the SNES Mini 2 would have to be designed to work to/within the original SNES’ technical limitations, purely so these new SNES Mini 2 games could also be released in large cartridge size for the normal SNES as well. That way there’s an instant larger potential market base without any need to design and create totally different versions of the game (outside of the different cartridges).