the way to do this is to get a tag sensor, make a label called sackbot, set it to sackbot
and colour blue, maxout the sensor to the full sensing radius (5000), now get the sackbot
and put the tag on the sackbots microchip, set the tag to blue label sackbot not go back
to where the tag sensor is (put on something like a start gate mabey, strongly
reccommended that you make non-visable)connect output of tag sensor to a not gate and
connect the output of the not gate to whatever, now when the tag is not being sensed the
output is active, and the output may say be connected to a end game world tweaker, if you
have troble just meet me if i'm online my username's texxisawsome, BTW my user name isn't
miss spelt it's just short

place invisable hologram, place a follower then place a tag named "sackbot" then make the
follower follow the sackbot tag
then place a tag sensor on the hologram, make it sense the sackbot tag then INVERT the tag
sensor, place a game ender then hook up the output of the tag sensor into the input of the
game ender. then done!

feel free to add me if you need anyhelp with sackbot stuff, my PSN is dylldj.