Double Bubble Trouble "Fixed" Click Green Flag, choose your Speed, then Click the Stage to begin. Pop a bubble by clicking on it. Pen Tracking can only be turned on in Mode 1.
Created by @gregatku for use in Coding Classes for Kids Unlimited. One way of fixing original problem in Double Bubble Trouble where "point at other-Sprite" didn't point at the clone. Clones record their X & Y positions in List Variables so we can work out which clone we're touching using Pythagoras's theorem & the arc-tangent function to "point at it". But Double Bubble Trouble is fixed now, so not needed.