Have you added anything other than simply difficulty and availability of all the Pokémon? I know it makes it more of a personal hack rather than just a 151 hack, but it would make it more interesting, and attract others to the game. For example, adding a Pokémon event here or there, a new trainer(s), different sprites, maybe different hero/heroine characters, etc. Just a thought.
i lol'd at the grammar, but yes, I think there is an in-game character who will trade you a Machoke.
Yeah, I'd like to expand the features if I could but I need to learn more about hex editing before I can do that but I do plan to add additional trainers etc.