A: There is a classic hack simply called "FireRed Omega" by Drayano, which is legendary for its difficulty. "Omega DX" is typically a modernization of that style or a similar project that adds the Physical/Special split and newer graphics. Always check the specific features list on the download page, as many hacks have similar names.
The DX edition improves upon the original hack by incorporating mechanics found in later generations: Pokemon Fire Red Omega Dx Download UPD
Moves are categorized as Physical or Special based on the move itself, rather than its Type (e.g., Fire Punch is physical, while Flamethrower is special). A: There is a classic hack simply called