I don't know if anyone has noticed this. There is this cool glitch where if you shoot a funnel and one of the players ends up being on one of the spikes of the funnel, then all the purple balls will explode under them.
ive hit it between 2 ppl which resulted in them both being on the corners having all the balls on each side hit them. was pretty cool.
After some experimentation in the firing range I worked out that you gotta hit the enemy like 3 degrees distance (6 times the length of your tank) far from him (on the right or on the left) in order to get the glitch. Besides, it requires very good accuracy: the slightest error will lead to total failure... EDIT Maybe this video could help.