TELMET

From the Super Mario Wiki

“Behold the TELMET! Television! Teleportin'! And, uh, it's a helmet.”
—Wario, Wario: Master of Disguise

The TELMET is a device Wario uses in Wario: Master of Disguise to teleport into the TV in order to get on the Silver Zephyr's show. The TELMET is used in the stage select screen to select episodes, and works with Wario's TV remote.