Hi Bill,
It takes speed and a something that blocks a hallway.
Double click to the exits.
Practice the route to see where to clicks and where to go.
I'm quoting the walkthrough.
Be sure that you already placed the blockage at the middle of the playrooms hallway.
Follow the cleaning robot as fast as you can.
Use the double arrows (double click) at exits.
The path to take is: galley - hallway - door - fake control room - left green door - nexus - right blue teleporter - starboard hallway.
Click on cleaning bot by the trash chute. The bot leaves. Pick up the dropped cereals.