The term "Level IV" typically refers to either the Upper Intermediate (Level 4) TOPIK II Korean proficiency test, requiring advanced language skills, or the mature,, choice-driven narrative of the Grand Theft Auto IV video game. It can also describe the meta-puzzle game " That Level Again 4 " or a "Do Not Travel" advisory for dangerous locations from the U.S. State Department. All About TOPIK Test - The Complete Guide