Emerald Hill Zone in Castlevania: Symphony of the Night (PoC)

Proof of concept that showcases what it is possible to achieve nowadays with Castlevania SOTN modding.

The port of the level is far from perfect and it has countless hacks and work-arounds to somewhat make Emerald Hill Zone from Sonic the Hedgehog 2 to run in the SOTN game engine. I am still working on making it prettier and less buggy. When (and if) it will be ready, it will be published and open-sourced.

The SOTN game engine does not allow flipping tiles horizontally and vertically, therefore I had to duplicate the tileset for each variant which resulted in almost filling up all the available stage tileset VRAM. Each tile can only be associated to a single collision ID, but since Sonic 2 uses different collisions for the same tile I had to duplicate the tile indices further to simulate it. Sonic 2 also has two collision layers and each collision tile has their own collision descriptor to describe when the tile is fully solid or Sonic can collide on its floor but not when jumping from below it. This mechanic is fully ignored in this port.
Finally collisions are not perfect. The collision system is far more sophisticated in the Sonic MegaDrive trilogy, but here I have to resort to approximate collision replacements that helps to not allow Alucard to fall into the void or get stuck but still does not provide a smooth experience.

A lot of compromises, but still an interesting challenge!

[RJ_chaos]

Ok now we need a wingsmashing vs Sonic race

[zackmorris]

This is cool AF but I honestly am more interested in finally getting the Definitive Version of SOTN which IMO would be adding the Saturn exclusive content to the PSX version.

[lucassattelmayer]

Friend was really fantastic this work, can you put the phases of sega saturn with that decompiler you used?

[TheBACH]

Hello @Xeeynamo, I hope you can help me.
I was trying to find your 10+ years old Italian patch of KH: Birth by Sleep Final Mix for PSP. Both the 1.1 and 1.2 download link in your old blog/site are down and there is no other way to download them (it seems).
Also: I remember even the 1.2 version (the final one) does not have most of the Diary's entry translated, they are still in japanese, or I'm missing something?

[ADMGHX]

Thats so incredible
But there is a thing i want to say
Sonic hybrid rsdk project doesn't work with me
The exe itself doesn't open
Please try to update and fix it fastly
Because nobody take about it sadly😢
And try to make support to
Android
Linux
Switch
3ds
It will make your project very famous and will get a ton of downloads
Please do it

[Froozex_]

Ciao Xeeynamo, ti scrivo qui perchè non so dove altro posso contattarti.
Avrei bisogno di parlarti in merito ad un progetto, se hai modo e sei interessato fammi sapere dove possiamo sentirci.
Grazie e scusa per il disturbo.