What old Flash game is infamous for "running out of power"?

You guessed it. Have some screenshots. <3

I'm doing a thing where aside from the normal fuel gauge that comes down fast, you can't see a lot when you're far underground. Turn on a flashlight to see more, at the cost of lots of power. Maybe that's good enough for the theme? I dunno.

Things left to do: nice distribution of minerals, win/lose conditions, some sound effects hopefully.