Echomaze

An electric labyrinth is powered up for two seconds — the only look you ever get at it. Then everything goes out: the maze, the six mouths along its floor, even the walls of the arena. Fire pulses up into a mouth and the board exists only where one just hit it, arcing white and dying out over a couple of seconds, so you are echolocating a maze you can no longer see. Each mouth is a one-way flap — a pulse pushes through and it drops shut behind — and of the six, one leads to the gate at the top and five are dead ends.

A Newrare game — more at Newrare.