Complex sentence: Besides these ape-like robots, there are a large variety of other enemies, such as tanks, cannon turrets, small firing ships, larger carrier-ships, special sentry robots, and a few special enemies.
Split into simpler sentences: Besides these ape-like robots, there are a large variety of other enemies. There are tanks, cannon turrets, small firing ships, larger carry ships, special sentry robots, and a few special enemies.