Super Kumonga or Spidey is the boss of Insect Island.
Like it's smaller brethren, the giant spider will bounce around, to the left and to the right, in an effort to get closer to Bubblun or Bobblun. It will try to land where you are standing, so be sure to move out of the way once it leaves the ground. You can attack it with rainbows by standing next to where it will land. But you will do much more damage if you manage to crush it with rainbows instead.