If a player or creature passes the pressure plates, they are shot with arrows (or other objects).
By stepping on the pressure plates, the flares go out and the pistons retract so that the object can leave the launcher and be shot into the tunnel. In addition to arrows, fireballs, for example, are also well suited.
Unfortunately the pressure plates are very conspicuous
Have it intentionally built with brick, so that you can see it better. In the application you can then work with paving stones or similar.
You can also do that well with water, so that you drown. Then you make on the ground hopper and gets so the items of the drowned. 😀 small improvement suggestion, but with arrows goes yes also. Only that with the hoppers that lead into a box I would include! Otherwise good idea!
Would be great if there was a switch with which you could deactivate the trap briefly, so that you can still pass yourself.
Lots of space, lots of stuff, little success/efficiency.
After 1 day test: 4 wood, 3 axes, 1 bread, 4 rotten meat and 2 seedlings.
Well.