@Sollace  
Ehehehehe… Someone would have to pay, that’s too big a time investment lol. Not to say I wouldn’t be happy to do it, but I’ve got two jobs and a wife and kids to tend to, so I really need to be paid for my time ^^;;;

@PhonicB∞m  
That’s a same.
 
And your sprites would be perfect for a ponymon game, if you can handle making 300+ of them.

@Ezequiell
 
@Sollace  
There’s a couple, but frankly, they’re kinda awful ^^; The insertion of ponies just feels awkward, and the graphics are based on the Desktop Ponies sprites, which look juvenile next to the polished Pokémon graphics.  
Honestly, I think it might be fun to replace some Pokémon and/or Trainers with ponies, provided you used high-quality sprites *coughlikeminecough*, but treat it like a regular Pokémon game, but what would REALLY make a good MLP ROM hack would be a Pokémon Mystery Dungeon hack. Unfortunately, there’s not much of a scene for PMD mods.

@Ezequiell  
There have been at least two, that I know of.
 
But none of them are finished.

Someone needs to do an Pony Pokémon romhack already.