It is a pun of the word mashō (魔性), meaning "devilishness", and in keeping with this theme, the Japanese cartridge contained a red LED at the top which illuminated when turned on.
The Lord of the Rings: The Two Towers | Fawlty Towers | Charters Towers | Silent Night, Deadly Night | Radio masts and towers | Petronas Towers | Watts Towers | The Two Towers | Khobar Towers bombing | Deadly Women | Constance Towers | Towers of Chevron Renaissance | The Psychiatrist (Fawlty Towers) | Tantivy Towers | seven deadly sins | Raheja Towers, Chennai | Raheja Towers | Mentmore Towers | Kiss Me Deadly | Caesar and Otto's Deadly XMas | Towers of Darkover | The Three Towers of San Marino | The Deadly Spawn | the Deadly Snakes | Seven Deadly Sins | Phiroze Jeejeebhoy Towers | London Towers | Harry Alan Towers | Deadly Weapons | Deadly Medicine |