The get progressively tougher in terms of amount of Pokemon, IVs, Mega-Evolution, movesets and items – Gym leaders have been significantly upgraded. – Many trainers now have a greater amount of Pokemon with custom movesets, higher IVs and items – A more consistent but much harder level curve to greatly increase difficulty NeoX&Y are pretty much identical at this stage. Neo X & Neo Y are rom hacks of Pokemon X and Y designed to offer the player greater difficulty through expanded trainers and better variety through edited wild Pokemon encounters along with a plethora of other features. Source link: /home/forums/topic/35339-pokemon-neo-y-neo-x/
