Séamus since then. Though still used by some as a derogatory term, the great preponderance of Irish and Irish-American law enforcement officers led to a persisting stereotype, and the name "Shamus" continues to refer to Irish-American police and private detectives. Séamus Variant spellings include ', ', ', ', "Shaymus", "Sheamus" and "Shamus". Diminutives include ', ' and "". In the United States, the word "Shamus" is a derogatory slang misspelling of Séamus that arose during the 19th century as more than 4.5 million Irish immigrated to America, peaking at almost two million between 1845 and 1852 during ""The Great Hunger"" (Irish:
Shamus (video game) 128-room maze of electrified walls. The ultimate goal at the end of this journey is "The Shadow's Lair". "Shamus" differs from "Berzerk" in that there's a persistent world instead of rooms that are randomly generated each time they are entered. There are also items to collect: bottles containing extra lives, mystery question marks, and keys which open exits. Opposing the player are a number of robotic adversaries, including spiral drones, robo droids and snap jumpers. Shamus is armed with "Ion SHIVs", SHIV being an acronym for Short High Intensity Vaporizer, and is able to hurl up to two at a