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“Stuck on level 256 forever” – Unsung
Marcin Wichary · 2026-01-28 · via Unsung

I’d guess a lot of people know that the original 1980 Pac-Man ends accidentally with an iconic, glitchy, and impassable “kill screen.” Many people will also nod with recognition at hearing the kill screen is level 256, a number that immediately gives some ideas on what might have happened.

But this fun 11-minute video from 2017 by Retro Game Mechanics Explained doesn’t stop there. It shows, step by step, exactly what is going on when you reach level 256, and how each one of the glitchy things appear on the screen.

It’s a little mesmerizing, like watching a building demolition in slow motion.