Unlike previous games, when you capture a Boss, you do have the ability to rematch them to better your score and gain lots of experience. This is done by completing a quest for Nema where you need to get her a Jolteon, Ampharos, Electrode, Electivire & Manectric. Once done, she will teleport you to an area that looks just like Dolce Island did. After each battle Nema will heal your Pokémon. However, any Pokémon whom you lost will not be replaced. In addition to bosses, a variety of Pokémon you previously battled but aren't located elsewhere are here. They all follow the same tactics as earlier in the game and have the same Hit Points. However, Pokémon you previously battled in the sky will now make contact with your Styler. Below is a list of the areas and all Pokémon found within it. You need to have battled them previously to get them here

Area 1

Ranger No.	Picture	Name	Type	Field Ability	Assist
R-058		Lapras	Water		Water
R-092		Feraligatr	Water	Slam * 1	Water
R-159		Typhlosion	Fire	Slam * 1	Fire
R-249		Suicune	Water		Water
R-282		Mamoswine	Ground	Slam * 4	Ground

Area 2

Ranger No.	Picture	Name	Type	Field Ability	Assist
R-044		Crobat	Poison	Slash * 1	Poison
R-057		Celebi	Grass		Grass
R-112		Magnezone	Electric	Electrify * 3	Recharge
R-141		Torterra	Grass	Slam * 4	Grass
R-172		Meganium	Grass	Slash * 1	Grass
R-208		Charizard	Fire	Break * 4	Fire
R-291		Ditto	Normal		Normal

Area 3

Ranger No.	Picture	Name	Type	Field Ability	Assist
R-126		Raikou	Electric		Electric
R-186		Entei	Fire		Fire
R-223		Scizor	Steel	Slash * 4	Steel
R-226		Metagross	Steel	Break * 1	Steel
R-287		Rhyperior	Rock	Slam * 4	Rock
R-292		Regigigas	Normal		Normal

Area 4

Ranger No.	Picture	Name	Type	Field Ability	Assist
R-201		Garchomp	Dragon	Break * 1	Dragon
R-205		Yanmega	Bug	Slash * 4	Bug
R-222		Scyther	Bug	Slash * 2	Bug
R-278		Latias	Psychic		Psychic
R-279		Latios	Psychic		Psychic
R-293		Mewtwo	Psychic	Psy Power * 1	Psychic