I loved this set as a kid. It looks sort of hideous now, though, if I set aside my nostalgia for a moment. So many huge, juniorized parts! I had to change that.
Attention all rock monsters in the vicinity! Evacuate the premises! This is not a drill! Actually it is. It's a big drill. RUN.
The window opens, just like in the set. Smoothly, though, no jumpy click hinges.
Did you notice the Power Functions parts? I bet you did. You're clever! ...A reward? For being observant? Oh... er, here, have a video!
For those who don't/can't watch the video, here's a list of the remote-controlled play features I've added:
•Spinning drill (direction depends on driving direction)
•Cab lights (solid when moving forward, blinky when moving backward)
•Working tower light (not actually remote-controlled; it has a push-button)
Don't you want to go back and watch it now?