Complex sentence: In this game, the hero (a Yar) is an insect-like creature who must nibble or shoot through a barrier in order to fire his Zorlon Cannon into the breach and destroy the evil Qotile, which exists on the other side of the barrier.
Split into simpler sentences: In this game, the hero is an insect-like creature called a Yar who must nibble or shoot through a barrier in order to fire his Zorlon Cannon into the breach. The objective is to destroy the evil Qotile, which exists on the other side of the barrier.