I think the main thing is that they want to keep the action moving. If you linger over/under a hazard, you get bit.
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These chicks know how to party! - MoJo JoJo
There's a guy who controls them at the push of a button. I don't remember his name. He has orderes to show no mercy.
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These chicks know how to party! - MoJo JoJo