Why is this called Sector 1? Well, this episode is unlike the others. After fleeing the evil in Fanon 27, they find a new ship. But this ship holds a dark secret in the fourth sector. Each sector tests the skills of a different crewmate.
Sector 1 here seems to be designed for Thresher.
Sector 2 looks like it's meant for Mr. Pizza.
Sector 3 is for Octal.
Which leaves Sector 4 for… all of them!?
This is Sector 1.
Thresher bounces off his sword to land on a platform, which drops down, allowing the other two to pass. He, however, needs to get a button, which is possible with sword-fling maneuvers. He then powers the wires with his sword and presses the button.
They all move into Sector 2.