Complex sentence: Unfortunately, they shoot at, and break, Lao's goldfish bowl, and the inhabitant is revealed (to the accompanying sound of bagpipes) to be the Loch Ness Monster, which balloons to enormous size when exposed to the open air.
Split into simpler sentences: Unfortunately, they shoot at, and break, Lao's goldfish bowl. The inhabitant is revealed (to the accompanying sound of bagpipes) to indeed be the Loch Ness Monster, which balloons to enormous size when exposed to the open air.