This month celebrates the 25th birthday of the legendary Pac-Man.
A Pac-Man engineering fact from Wikipedia:
The game technically has no end; the player will be given new boards to clear as long as he does not run out of lives. But due to a glitch in the game, the right side of the 256th board is a garbled mess of text and symbols, rendering the level virtually unplayable. This glitch occurs because of the way the level number is stored in hexadecimal within the programming of the machine. "FF" (hexadecimal for 255) is the highest number possible to store using a 1 byte number (each hex character is 4 bits, 8 bits is 1 byte). When the game tries to go to a number higher than FF (the next level, which would be 256, or '100' in hexadecimal), such a thing cannot be done, and the game goes berserk.
Ah, PacMan
