Summary:
- "Ketsu Battler" is a newly announced game for the Nintendo Switch that features a unique "one-on-one butt shaking battle" gameplay mechanic.
- The game is described as a "butt-shaking battle" game where players compete against each other by shaking their butts to defeat their opponent.
- The game appears to be a quirky and humorous take on the fighting game genre, focusing on the unconventional "butt shaking" mechanic as the primary gameplay element.