Stickman Adventure, Part 24: Beeping Noises

Our hero goes left to investigate the beeping noise. He comes upon the first and only door at ground level he's seen so far. A shadowy figure inside turns off an old fashioned CRT television, darts outside and climbs a ladder, which then retracts up out of reach along vertical rails on the wall.

You try to catch him but are too slow. All that remains is what appears to be an Atari 2600 games console hooked up to the television which is connected by wall fastened cables to the ladder retraction mechanism. It's not clear how the two are connected and may be a trap...but it may also be a way forward.

What would you have our hero do next?

^{Stay Cozy!}