In the finale of the Metal Gear Solid 3 LP, Snake is getting his ass torn up and handed to him by the Boss while Chip tries to use conventional methods to take her down. Cue "Snake Eater", some Theme Music Power-Up, and Snake fully embracing his inner eccentric jungle man, donning a monkey mask, successfully countering The Boss's mad CQC skills with epic Dope Slaps and rolling tackles. He finishes her off by resurrecting Mission J. Frog, their greatest ally, as a distraction and smacking her with empty pistol magazines, before taking her out.
Chip: No, seriously, I'm doing this on purpose. For when the music starts.
Ironicus: Suuure you are.
Chip: No, I honestly did, right here, at the five-minute mark.
Chip: Nonononono. Conventional methods don't work. What should I use...Monkey mask!
Ironicus: [starts laughing]
Chip: You didn't believe me!