Red: I'm a bit puzzled as to why my Starlogo I installed at home has some differences to the one used here. I think it has something to do with a jar file.
Yellow: More instructors (maybe called "facilitators"?) so more people could be helped. Macs weren't bad, but the mouse seemed to take too much movement to move around the screen. This really is small, but it is the main thing I noticed with the computers.
Green: I thought Starlogo worked well, providing an easy way to have a simple game quickly.