Are all missions of Opticording sphere required to fight planestrider?

Question

Players can obtain and complete their own cube by skipping missions of the Opticording sphere/mysterious ornate chest quest.

Is it possible for the players who skipped missions such as killing the last planegazer to fight the final boss Planestrider and receive the final reward?

Answer 1

No, if you didn’t do the rest of the missions you cannot fight the Planegazer.

Although you can get and use the cube.

Comments

Since players both obtain and use a cube after skipping missions, which room stops players from getting to the lever room?