lifelines
multiple-choice questions
increasing cash prizes
board game adaptations
catchphrase 'Is that your final answer?'
charity specials
contestant hot seat
contestants can walk away with winnings
dramatic lighting and music
fastest finger first
final question called 'the million question'
influential in global game show formats
international adaptations in over 100 countries
merchandise and books
mobile and video game adaptations
safety net levels
various celebrity editions
contestants can lose money if they answer incorrectly after a certain point