Wrench

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

It is one of three items Henry Stickmin can use to try and sabotage the engine of the Toppat Orbital Station. However, instead of damaging it, the Wrench causes the engine to be upgraded and the rocket is launched ahead of schedule, much to Charles' confusion. Then Charles says, "This doesn't seem... right." This leads to a fail.

Fail Message
And that was only a level TWO engine!

Trivia

 * It is a reference to the Wrench from Team Fortress 2.