“That’s not a real command.”

Then he typed .

He’d found it on a shareware site called “FreeChristmasGames.ru”—a relic of the dial-up era, full of pixelated clip art and blinking Comic Sans banners. The description read: “Santa’s sleigh has crashed! Help him fix the rotor and deliver presents before Christmas morning! New in 1.1: Snow physics and reindeer stamina bar!”

Leo didn’t fully understand. But he understood trouble . The word was in the title, after all.

“It’s a backdoor I coded into the sleigh’s navigation system. Krampussoft doesn’t know I hid it in the fragmentation algorithm.” He paused. “Also, unplug the phone line. They’re triangulating your location to brick your BIOS.”

Leo leaned closer. “Who’s ‘he’?”

He double-clicked.

Leo’s mom had yelled at him for using the phone line, but she was upstairs napping. The modem squealed like a tortured hamster. Finally: Download complete.

The screen didn’t defrag. It shattered into a million blue pixels that reassembled into a snowy forest. The pixel Santa grew to full size—still retro, but now with a fluffy beard and a reindeer that looked suspiciously like a wolf with antlers glued on.

Below it, a grinning ASCII skull made of zeroes and ones.

His mom never found out. But every Christmas after that, when the snow fell outside his window, Leo could have sworn he heard sleigh bells—and the faint, glitchy echo of a Windows 98 startup chime.

In its place: a tiny, animated Santa Claus, no taller than his thumb, running frantically across the screen. The Santa was pixelated—two red pixels for a hat, three for the beard—but his panic was unmistakable. He slammed his little fists against the edge of the monitor.

Leo grinned. “Can I play?”

The tiny Santa pointed up—or rather, toward the top-left corner of the screen, where a new window had opened: