Current Events > How did they get Sonic n Knuckles to work on Sonic 2?

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Billyionaire
12/04/22 10:06:35 PM
#1:


An OLDER game than the game it was supposed to be for

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$ex
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jsb0714
12/04/22 10:09:20 PM
#2:


Lock-On technology
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Kim_Seong-a
12/04/22 10:09:48 PM
#3:


Dont know the details but cant imagine it'd be hard.

Knuckles is what's in the actual cartridge slot having instructions read by the console. Literally all of Sonic 2 is right there so it's easy to say "start up this level from this part of memory, but use this character asset in place of the other one"

Iirc the main reason they couldnt get Sonic 1 to work was something to do with color pallets

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Lusa Cfaad Taydr
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Ivynn
12/04/22 10:10:16 PM
#4:


They couldn't get it to work on Sonic 1.

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TheAwesomeMatt
12/04/22 10:11:53 PM
#5:


Looking back it was mad they put time and money into it, just because they could. It was fun playing it at the time, you could reach those areas that you couldn't with Sonic and Tails.

I think we rented it from Blockbuster that we really should have just bought it.

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Billyionaire
12/04/22 10:12:34 PM
#6:


Kim_Seong-a posted...
Iirc the main reason they couldnt get Sonic 1 to work was something to do with color pallets


I despise Sonic games but that would be so cool............

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$ex
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Scotty_Rogers
12/05/22 12:32:00 AM
#7:


They could get Knuckles to work in Sonic 1. They just felt it wouldn't match with the story or some shit iirc

Anyway the Taxman remake of Sonic 1 lets you play as Knuckles in it, you can play it in Sonic Origins

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rexcrk
12/05/22 6:09:15 AM
#8:


jsb0714 posted...
Lock-On technology


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Illuminoius
12/06/22 4:19:54 AM
#9:


Scotty_Rogers posted...
They could get Knuckles to work in Sonic 1. They just felt it wouldn't match with the story or some shit iirc
a lot of things relied on sonic's palette, and changing it around to fit knuckles in the game would corrupt the appearance of many things
they seemingly just did not find the extra effort with it
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NeonTentacles
12/06/22 6:11:07 AM
#11:


Scotty_Rogers posted...
They just felt it wouldn't match with the story or some shit iirc
It's a video game. Who cares >_>

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Foppe
12/06/22 12:54:34 PM
#12:


How did it work?
Each Genesis game starts with a header, imaginate it being a digital identification that the console have to access before starting the game. When the Sonic & Knuckles cartridge feels that a cartridge is inserted, it will check if it is a Sonic 3 or a Sonic 2 cartridge. If it is Sonic 3, it will merge it with the data on the cartridge and create Sonic 3 & Knuckles.
If it is Sonic 2, it will say "run this game, but when the game is looking for player data, use Knuckles data instead".
So why didnt it work with Sonic 1?
It did, but it screwed up the graphics because they couldnt find a working color palette.
Back then, memory was expensive as hell. So to save space, and money, graphics was stored different. This is how some Super Mario Bros graphics are stored
https://gamefaqs.gamespot.com/a/user_image/8/8/6/AAA_aCAAD9Y-.jpg
Small tiny pieces that can be reused with different colors (Mario vs Luigi, cloud vs bush, etc). So instead of saving graphics for two characters, it stores one and references to what color in the color palette you want to use.
This is the Nes color palette
https://gamefaqs.gamespot.com/a/user_image/8/8/7/AAA_aCAAD9Y_.png
56 colors to pick from. Each game got access to smaller color palettes with fewer colors, basically you got 13 colors for the background and 12 for sprites, so a whooping 25 colors on screen at the same time!
The Genesis had a bigger palette and more colors on screen.
But Sonic 1 used the palette in such way so they couldnt add Knuckles colors without it messing up some color somewhere in the game.
From a technical point of view, they could have rewritten all the graphics coloring from scratch to fit with Knuckles colors, but that would require so much extra data stored on the Sonic & Knuckles cartridge so it wouldnt be worth the extra cost.


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ElatedVenusaur
12/06/22 1:03:18 PM
#13:


Illuminoius posted...
a lot of things relied on sonic's palette, and changing it around to fit knuckles in the game would corrupt the appearance of many things
they seemingly just did not find the extra effort with it
Yeah, Sonic 1 has a different color palette than Sonic 2 or 3 (for example, Sonic is more a powder blue color), which meant that getting Knuckles to look right was a challenge they decided not to tackle.

Sonic 2&Knuckles works because Sonic&Knuckles (IIRC) actually is able to inject new code that contains not only the data for Knuckles (the specific colors of his sprite already exist in the game's color palette), but also modifications for stages to insert areas and secrets for Knuckles to find with his unique skill set. Sonic 1 was also an older and jankier version of the engine that may not have bee able to so easily handle Knuckles' particular skill set. Deadlines tended to be fierce for Sonic Team and they regularly left a ton of shit on the cutting room floor.

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VampireCoyote
12/06/22 1:05:26 PM
#14:


the Sonic & Knuckles cart adds a 17th bit to the cart on top, allowing knuckles

with a jailborke you can play as knuckles in any genesis title

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Kamil
12/06/22 1:09:11 PM
#15:


Did you know MJ worked on the soundtrack for Sonic 3?

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