S1·E12 Demon Queen Riviere of the Demon World

Data and Gantetsu continue to fight the Demon Queen Riviere at the bowling alley. Gantetsu was almost overwhelmed by Riviere’s strength, but Data’s words helped push him to use an ultra EX attack for a come-from-behind victory! They successfully won the battle against Riviere and Demera but there’s no time to celebrate; the Demon King Mus suddenly appears!