the cliche where the main villain runs out of bullets/hesitates/does villainous monologue as soon as they "critically" wound the main character, allowing main character to recover and killum
like cmon man, kill the main character already, they spent the entire game/movie/novel/whatever trying to kill the motherforgeter and when they finally meet face to face they don't even do jackstuff, causing their inevitable (and predictable) death because they are the villain