Hard Mode

Enemy teams will have higher levels than in easy mode

The Exp you gain will be lowered ofter the playthrough compared to easy mode

You will be allowed to use only one item (Poké Balls not counted) per battle

Once you lose a battle, you will lose half your money, like in gen 1

Advanced AI will be used

Some boss battles will confront you with special challenges

Lvl 15: Game Start
Lvl 20: first rival battle
Lvl 25: Rivex Warehouses
Lvl 30: Ferres Rock
Lvl 35: Citadark Isle
Lvl 40: revisit Lumina
Lvl 45: Vilestone Isle
Lvl 50: revisit Pokémon Sanctuary
Lvl 60: Shadow HQ
Lvl 70: Tenebris
Lvl 85: defeated ???
Lvl 100: defeated ???