What are the best Pokemon ROM hacks? Generally ones that up the difficulty but don't have retarded new stories or original pokemon donut steels.

I was playing FireRed Omega (on Set and a rule that I can't use revives in battle and can only use as many healing items as the opponent does) and it was fun as fuck. Brock and Misty kicked my ass and I really had to strategize in order to beat them. Though after that the difficulty kind of dropped. Stopped playing around Silph Co.