how did u get the roomba to give objects to the sprites and allow the sprites to take objects?
This thread on the Bitsy forums answers this question: https://itch.io/t/234122/how-do-i
Bear in mind that Roomba Quest uses an older version of Bitsy and some special things like gate-key interactions I had to use a tool called Borksy to hack the game so I could make special exits. But in modern Bitsy you can do these things without any external tools.