Hot Knife

Hot knife is an option in Completing the Mission during the Valiant Hero pathway.

It is so hot, it can cut through any material. Charles tells Henry to press a button on Henry's helmet to release the knife. This results in a fail when the knife ends up floating away, with Charles chastising Henry for dropping it.

Fail Message
Butterfingers?

Easter egg
If the player clicks on the fail message, it will (like the Parachute fail in Infiltrating the Airship) play the "Butterfingers" voice clip from the film Spider-Man 2, followed by the voice clip "Pizza" and a screaming face (parodying the face done by Spider-Man in the film's climax) briefly appearing, yelling "AAAAAH!". It will award the "Greasy Delight" medal.

Easter Egg Transcript
ButterPIZZA!

Spider-Face: AAAAAAAAAA!

Trivia

 * This is most likely related to the "1000 Degree Knife" YouTube trend.
 * Clicking on the fail message awards the player with the medal "Greasy Delight".