Ensnared in a web full of creepy crawlies, you naturally enough want to eradicate the whole lot. So you rush around trying to plant bombs at the corners before escaping. To protect you while you're doing this you can blast the spiders, flies, centipedes and ladybirds with your laser.
Feeling bloodthirsty? Then just keep your finger on reverse and fire away. One for the hardened mega-zapper.