"This is the card you want! It lets you access even the most classified of rooms in the facility, and even let you open the control room, sector four, and enter every single spawn location!"
The Omni keycard is a gamepass item that is purchasable for 400 robux.
The Omni keycard is the highest clearance in the game, able to open every door that currently can be. It was raised from 350ish robux in an unknown update to reduce rioting. CLASS-D CANNOT GAIN CLEARANCE!