It's not quite as advanced as mine though unfortunately. This one seems to work via a main loop exploit where it loads code into the RAM right after the first few instructions and executes it. Mine is injected into the callback system and has stuffs for accessing system functions like music and cries. It's a common method though and I will say it's rather impressive. But not the same.
In the thread of Platinum Red and Blue (I didn't wanted to post there, because it's thread for a hack, not a resource or something), you mentioned that it's only 2 simple routines to make forms work. Would you mind sharing them, please? I am making a similar hack of FireRed, but it will use Platinum Pokémon and other features, but it will stay at Kanto and I could really use Giratina, Arceus and Shaymin formes.