Sixth Terminal (六層ターミナル) tutorial

World unlock conditions

World Condition
Geometry World → Sound Saws World Boy effect (Geometry World)
Chocolate World → Butter Rain World Cake effect (Cutlery World) → Menu Theme #19 (Chocolate fountain in Chocolate World)
Heart World → Cipher Fog World Crossing effect (Heart World)
Christmas World → Sherbet Snowfield FUJI minigame (Christmas World)
Common Have visited Dream Park’s central section

Unlock the shortcuts from Sixth Terminal (Layer 4) by entering from the world the shortcut will lead to.

第４層

                        ↑
                 Sherbet Snowfield
    ← Sound Saws World        Cipher Fog World →
                 Butter Rain World
                         ↓

Money

Pink Puni gives １５０００夢！！！！（殺さない！）(NO KILLING!)

The location can be narrowed down by the Nexus color:

Blue Nexus Grey Nexus
Sound Saws World Sound Saws World
Sherbet Snowfield Cipher Fog World

My method:

Diagram