A dream is a world created by Nightopia in the Night Dimension. They are the main places the player enters to complete missions and challenges. A dream is also created by a Visitor's heart and is where a Visitor's Ideya lies. In this case, Will and Helen, who are two Visitors accompanied by NiGHTS, the creator of the World of Nightmare tries to capture them by placing a second-level Nightmaren in each dream they have.
NiGHTS into Dreams
Claris' Dream:
Dream 1: Spring Valley
Boss: Gillwing
Dream 2: Mystic Forest
Boss: Gulpo
Dream 3: Soft Museum
Boss: Jackle
Elliot's Dream:
Dream 1: Splash Garden
Boss: Puffy
Dream 2: Frozen Bell
Boss: Clawz
Dream 3: Stick Canyon
Boss: Reala
Claris & Elliot:
Dream 4: Twin Seeds
Boss: Wizeman
NiGHTS: Journey of Dreams
Will's Dream
Dream 1: Pure Valley
Ideya: White Ideya
Boss: Donbalon
Dream 2: Lost Park
Ideya: Blue Ideya
Boss: Chamelan
Dream 3: Delight City
Ideya: Green Ideya
Boss: Cerberus
Helen's Dream
Dream 1: Aqua Garden
Ideya: White Ideya
Boss: Girania
Dream 2: Crystal Castle
Ideya: Blue Ideya
Boss: Bomamba
Dream 3: Memory Forest
Ideya: Green Ideya
Boss: Queen Bella
Will & Helen
Dream 4: Bellbridge
Ideya: Yellow Ideya
Boss: Wizeman