Question: what is the most popular arcade game of all time
[{'answer': 'Pac - Man', 'provenance': [{'wikipedia_id': '888572', 'title': 'Golden age of arcade video games', 'start_paragraph_id': 68, 'start_character': 1, 'end_paragraph_id': 68, 'end_character': 9, 'bleu_score': 1.0, 'section': 'Section::::Legacy.\n'}]}]