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: Case II game "Berzerk" that was improved with extra features to make it more interesting. It was based on a top-down view of a series of rooms that the user moved through. The player, playing a robotic detective known as "Shamus", had to traverse the rooms, collecting keys and unlocking doors to progress towards the lair of the criminal mastermind, "The Shadow", defeating various re-spawning robotic adversaries. "Case II", in contrast, is a side-view game, in which Shamus chases The Shadow through his new underwater lair. The game map contains three types of rooms. The first, "pit rooms", are simple maze maps