They were kind of like boxes full of circuitry on legs that became more and more humanlike over time until the big breakthrough came in 2000 with Asimo: the Advanced Step in Innovative Mobility robot.
The Asimo name returns as an original vehicle operating system developed in-house by Honda, set for use in the new 0 Series EVs. Long before there was Optimus, there was Asimo. Not a lot of people ...