I was stuck on level 88 for a long time. I got it by going right from the left blue dot, around and back to the left and up and around the left side. This leaves the teal dots on the outside. Use the orange to circle the yellow without cutting off the teal dots.
 "Heroes of War"){kind=icon}
 "Lynk"){kind=icon}
 "AdVenture Capitalist"){kind=icon}