Technically, this seems pretty impressive; from a gameplay perspective, exploring things this way is fascinating, but I really didn't like how the camera only seemed to follow the player once they got two-thirds across the screen. This meant that almost all of the screen was dark at any one moment, even in the direction the player was looking.
Maybe if the camera instead moved in front of the player, so that the beam would illuminate more of the screen when appropriate, it would feel less limiting. Some audio might have helped a whole lot, too.
Otherwise, though, this was an interesting entry! Good job!