Uploaded May 2020 | Updated September 2026, 2 weeks ago
We use the SameBoy emulator to research what triggers MissingNo and reconstruct a plausible story of how someone could have discovered the glitch. By tracing Game Boy memory reads and writes, we find the stale land-encounter table, the Old Man tutorial's player-name overwrite, and the buggy Cinnabar Island shore tile.
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Learn hacking on Hextree: hextree.io
Watch this video and more on Hextree: app.hextree.io/courses/yt-gameboy-pokemon/pokemon-glitches
Join the Hextree Discord: discord.gg/xgQpCQCpvy
GameBoy Hacking Playlist: youtube.com/watch?v=ix5yZm4fwFQ&list=PLniOzp3l9V82onKsktyyKlIenAAUj45Mk
Checkout Stacksmashing's video about modifying GameBoy games: youtube.com/watch?v=dQLp5i8oS3Y&list=PLniOzp3l9V82onKsktyyKlIenAAUj45Mk&index=3
Coincidentally somebody else also just made a video about MissingNo, going into the details of the Sprite: youtube.com/watch?v=ZI50XUeN6QE
CHAPTERS
00:00 - The MissingNo ritual and item glitch
01:32 - Reconstructing how the glitch could be discovered
02:57 - The coastline reuses previous encounter data
04:48 - The Old Man tutorial as the MissingNo trigger
05:25 - Forming a memory read and write hypothesis
06:06 - Adding trace commands to the SameBoy emulator
07:15 - Capturing Old Man writes and shoreline reads
08:50 - Intersecting traces and filtering background activity
10:36 - Watching the final candidate addresses
12:00 - Zone updates and decoding the player name ASH
13:45 - Stale land encounters on the buggy shore tile
15:14 - Identifying Pokémon ID and level pairs
16:10 - Separate land and water encounter tables
17:11 - The item multiplication mystery remains
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Instagram: instagram.com/LiveOverflow
TikTok: tiktok.com/@liveoverflow_
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#Pokemon #MissingNo #GameBoy #LiveOverflow
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We use the SameBoy emulator to research what triggers MissingNo and reconstruct a plausible story of how someone could have discovered the glitch. By tracing Game Boy memory reads and writes, we find the stale land-encounter table, the Old Man tutorial's player-name overwrite, and the buggy Cinnabar Island shore tile.
LEARN ON HEXTREE (ad)
Learn hacking on Hextree: hextree.io
Watch this video and more on Hextree: app.hextree.io/courses/yt-gameboy-pokemon/pokemon-glitches
Join the Hextree Discord: discord.gg/xgQpCQCpvy
GameBoy Hacking Playlist: youtube.com/watch?v=ix5yZm4fwFQ&list=PLniOzp3l9V82onKsktyyKlIenAAUj45Mk
Checkout Stacksmashing's video about modifying GameBoy games: youtube.com/watch?v=dQLp5i8oS3Y&list=PLniOzp3l9V82onKsktyyKlIenAAUj45Mk&index=3
Coincidentally somebody else also just made a video about MissingNo, going into the details of the Sprite: youtube.com/watch?v=ZI50XUeN6QE
CHAPTERS
00:00 - The MissingNo ritual and item glitch
01:32 - Reconstructing how the glitch could be discovered
02:57 - The coastline reuses previous encounter data
04:48 - The Old Man tutorial as the MissingNo trigger
05:25 - Forming a memory read and write hypothesis
06:06 - Adding trace commands to the SameBoy emulator
07:15 - Capturing Old Man writes and shoreline reads
08:50 - Intersecting traces and filtering background activity
10:36 - Watching the final candidate addresses
12:00 - Zone updates and decoding the player name ASH
13:45 - Stale land encounters on the buggy shore tile
15:14 - Identifying Pokémon ID and level pairs
16:10 - Separate land and water encounter tables
17:11 - The item multiplication mystery remains
SUPPORT
Per video: patreon.com/join/liveoverflow
Per month: youtube.com/channel/UClcE-kVhqyiHCcjYwcpfj9w/join
Buy my handwriting font (ad): shop.liveoverflow.com
WATCH, FOLLOW & READ
Second channel: youtube.com/LiveUnderflow
Twitch: twitch.tv/LiveOverflow
Twitter: twitter.com/LiveOverflow
Instagram: instagram.com/LiveOverflow
TikTok: tiktok.com/@liveoverflow_
LiveOverflow blog: liveoverflow.com
Hextree blog (ad): hextree.io/blog
#Pokemon #MissingNo #GameBoy #LiveOverflow
(ad) LiveOverflow YouTube channel is supported by advertisement and product placement.
