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This is a video of a Sankyo Octopus Fever jackpot, filmed with the cooperation of Hitorimaruhan. The jackpot probability is 1 in 500, all 13. The jackpot pattern is 777 only, and the 7 on the 7-segment display above the drum indicates a jackpot. This machine was made before the 10-count regulation, so if the attacker is fully open for 30 seconds, you can get about 4,000 balls.