So I recently started playing through a combination of the pokemon sacred gold hack and the moemon platinum hack (baiscally just had the sprites copied over from platinum) and I noticed that pokemon with multiple forms (unknown, deoxys etc...) didnt have the changed sprites, I found the problem...
@Maximumbeans, Indeed. I've been working on getting this Infecutus chip to work on my PS2. But after soldering, I realised that a plastic piece was missing from the power ribbon cable to the power and eject buttons.