Hypnos of the most famous works of art featuring Hypnos is a bronze head of Hypnos himself, now kept in the British Museum in London. This bronze head has wings sprouting from his temples and the hair is elaborately arranged, some tying in knots and some hanging freely from his head. The English word "hypnosis" is derived from his name, referring to the fact that when hypnotized, a person is put into a sleep-like state (hypnos "sleep" + -osis "condition"). The class of medicines known as "hypnotics" which induce sleep also take their name from Hypnos. Additionally, the English word "insomnia"
Kratos (God of War) other figures from Greek mythology, including the heroes Perseus, Theseus, and Achilles, but his strongest influence is the hero Heracles (Roman Hercules), who appears in "God of War III" with the Romanized name and is the character's half-brother. For 2018's "God of War", Barlog explained that Kratos had to change his cycle of violence and learn how to control his rage. He said that Kratos had made many bad decisions, which led to the destruction of Olympus, and wanted to know what would happen if Kratos made a good decision. The birth of Barlog's own son influenced the idea of