The Isolation Dome is a dome that isolates a room its used in from the rest of the world.
When activated, the switches pop up from the ground and power surges around the tips to close it inside a barrier. The dome also separates from the earth and floats around in space. It was first used by Leo Akaba to prevent Yuya Sakaki and Yuri from going inside ARC-V to become Z-ARC. Declan, Riley, Sora, and Aster were also trapped with them until Yuya became the Supreme King Z-ARC, causing the dome to explode and returning the room back to Duel Academy.