Not sure how many of you have heard of this fan-made game, but it's pretty sweet! It has quite a few interesting features!
1. Two Complete areas with gyms and storyline
2. Pokemon from Gen 1-6
3. Updated secret base
4. Built in challenge modes
5. A rival even more annoying than Gary
6. You can get all legendaries except the opposite version mascot.
7. Online play
8. Shadow Pokemon
I've played through it, and I honestly found it to be pretty entertaining. The game says it's supposed to be more challenging than the real games, but I didn't really feel like that was the case. However, it's well worth the time, especially if you don't have a 3ds for X/Y or OR/AS.
http://www.reddit.com/r/pokemonzetaomicron/comments/2f7elj/pokemon_zetaomicron_1410/
Comments
Artemis says, "You are so high maintenance, Tharvis, gosh."
Tecton says, "It's still your fault, Tharvis."