What is the Pacman kill screen?

The game stores the level number in a single byte, which maxes out at 255. On the next board the counter wraps to zero, and a routine that draws fruit icons based on the level number goes haywire - attempting to draw 256 fruits, it sprays half the screen with garbage tiles. The left half of the maze plays normally; the right half is digital debris.

A handful of pellets are hidden inside the scrambled zone, but fewer than the level needs - eating everything findable still leaves the counter short, so the board never clears. The machine doesn't crash; it simply presents an unwinnable state. Players who get there have, in every meaningful sense, finished the game - usually by memorising patterns that carry a run all the way to level 256.

The split screen became gaming shorthand for "the absolute limit" - the wall at the end of mastery. The verified perfect score of 3,333,360 includes squeezing the last possible points out of the broken board itself. Our games end more politely: clear the maze and you win, no integer overflow required. See what a good score looks like on this side of the byte limit.