Pokemon Ultra Violet is a hack of Pokemon FireRed. It is more enjoyable than its predecessor, although it remains the general design and the storyline also. With many new improvements, you can have a good game to play.
Touhoumon Another World is a Pokemon FireRed hack, started in 2010 by AichiyaSANAE. All 386 Pokemon in this game are replaced with various Touhou characters of many recent Touhou games.
Pokemon ToxicPurple is another Pokemon hack gets its appearance in the Pokemon hacking world. In case you don’t know, this is a hack which will tell you the story of a Team Rocket member.
Pokemon The Wooper Who Saved Christmas: Besides the big Pokemon hacks, there are many mini hacks which are from a contest of a forum like Nuzlocke (a famous Pokemon community for creating many difficult challenges in games).
Pokemon Sweet is a hack of Pokemon FireRed. What do you think and what do you see when seeing the word Sweet? Candies, cakes, food? What else? Ah, you feel so hungry, right?