Torq!

A plate is held down by screws. Pull the last screw out and the plate falls away, uncovering whatever was pinned underneath it. That is the whole game — and it turns out to be quite a lot of game.

Every screw you remove goes to the toolbox bar. Three of the same colour clear together. Anything that does not clear waits in your holding tray, and the tray only has five slots. Fill all five and the run is over, so the real puzzle is never “which screw can I take” — it is “which screw can I afford to take”.