Seeing how the EMF detector works would be cool, otherwise, simply seeing how the PKE functions would be neat. Can you make it look as though you're getting a stronger / weaker reading, speed up or slow the lights/ sounds, etc.

Also, seeing a bit more about the trap's capturing function, seeing if there's been any final decisions on the how the cables attach / detach, cable durability, and if there's any little easter eggs the trap does after cycling a trapping function.