Complex sentence: Along the way, Fester gains new tools and weapons as well as clues to how to attack the alien mothership by fighting alien bosses as well as getting help from the various members of The Addams Family.
Split into simpler sentences: Along the way, Fester gains new tools and weapons as well as clues to how to attack the alien mothership by fighting alien bosses. He can also get help from the various members of The Addams Family.