A published Selection

Glitches, and how games break

10 videos, 4 h 32

10 videos that go into the code and show exactly why a famous bug happens. No hand-waving, just the routine that misbehaves.

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01
What Really Is "Arbitrary Code Execution"?
Smoovers
The idea behind the biggest glitches, explained before you meet any of them.
02
MissingNo.'s Glitchy Appearance Explained
Retro Game Mechanics Explained
The most famous glitch in games, traced to the actual bytes responsible.
03
Super Mario Bros. Glitch Levels Explained
Retro Game Mechanics Explained
Where the minus world and its neighbours come from in the level data.
04
Level End Glitches in Super Mario World
Retro Game Mechanics Explained
How ending a level early works, step by step through the game's own logic.
05
Bugs & Glitches of High-Level NES Tetris
Retro Game Mechanics Explained
Why NES Tetris eventually crashes, which top players now aim for deliberately.
06
Reverse Engineering Game Code from the Neutral Zone
Retro Game Mechanics Explained
How anyone works out what an old game's code is doing in the first place.
07
Why is Metroid so Laggy? Part 1 - Loading Rooms and Running Out of Time - Behind the Code
Displaced Gamers
Tracks a lag you can feel back to the frame budget it blows.
08
Zelda Hit Detection - Behind the Code
Displaced Gamers
Why your sword sometimes misses. The collision routine, read line by line.
09
Blaster Master Pause Glitch and Rotating Tanks Explained - Behind the Code
Displaced Gamers
A pause button that corrupts the game state, taken apart properly.
10
The Legend of Zelda Ultimate Glitch Explained [Arbitrary Code Execution] - Warp Straight to Zelda!
scrumpy
Writing your own code into a 1986 cartridge to skip to the ending.