The pokehack of today is Pokemon My Ass. This game is extremely funny parodia of Pokemon Fire Red with new sprites and new mechanics(like being able to freely buy and sell Pokemon), here are some features (taken from pokeharbor):
"Features
The clothes are changed. Our protagonist will have no shirt, many of the NPCs will have no shirt and a bare chest instead. I wonder whether they are trying to show their muscles or not.
Our Gym Leaders are also changed. You can see many weird things, such as Brock with a… bikini (eh, what, bikini?).
The main goal of our main character is not the same as the others.
Text changed as well.
You can enjoy many differents events that related to your Pokemon: the Ninja Squirtle on the sewers (Cowa Bunga!!!), fishing in a volcano, etc…
For now, you can buy Pokemon in PokeMart. Just prepare enough money to do so."