back to the dark.
Square Ruins (遺跡２, Iseki 2 Remains 2) is a maze-like area accessible from Cosmic World.
Ladders and blocks. Doors that lead everywhere (almost like Square-Square world), it is very easy to get lost here.
Once you reach a corridor with four doors, take the second door from the left. Afterward, enter the middle door.
Your goal is to reach a set of very long ladders that go south, they lead to a door that will teleport you to a room covered in vines with a bright blue light passage to the front.
Nexus → Red Streetlight World → Gray Road → Grass World → Green Neon World → Construction Frame Building → Cog Maze → Forest Pier → Abandoned Factory → Arc de Pillar World → Flooded Ramparts → Mansion → Deserted Pier → Deserted Town → Chaotic Buildings → Antenna World → Complex → Old Train Station → Cosmic World → Square Ruins