Killscreen

A killscreen is the last screen seen in a game when it's impossible to progress further because of a bug or other glitch. For example, in the original NES (Nintendo Entertainment System) game of Tetris, a 13-year-old named "Blue Scuti" became the first human to defeat the game at level 157 on December 21, 2023.

Bug, Crash, Error, Game terms, Glitch, Level cap, Overflow error, Software bug