Subsonic Wave

Subsonic Wave is an option in Completing the Mission during the "Special BROvert Ops" pathway.

After Henry Stickmin has infiltrated the Toppat Orbital Station, he needs a distraction for the Toppats near him so he can sneak to the engine room. Charles Calvin offers to take out the Toppats with a subsonic wave. However, despite Charles' warning to Henry to cover his ears, Henry also ends up being incapacitated by the wave, which squishes everybody in the storage bay.

Fail Message
Must've had it set to 11.

Trivia

 * Prior to the game's release PuffballsUnited showcased this fail in a sneak peak video released on April Fool's day, though with one major change: the subsonic wave itself was replaced with the opening bars of Never Gonna Give You Up by Rick Astley.