The MissingNo Research Labratory
~ Est. 1999 ~ Documenting the undocumented since Gen I ~
Welcome, Trainer
My name is Prof. Glitch and I have dedicated over 27 years of my life to studying the most famous glitch pokemon of all time: MissingNo.
While the mainstream gaming press has dismissed MissingNo as a mere "bug" or "programming error," those of us who have spent years studying this phenomenon know it is far more interesting than that. MissingNo is a window into the inner workings of the Generation I Pokemon engine, and understanding it teaches us more about how these games work than any official documentation ever could.
This site is the culmination of decades of research, testing, documentation, and debate with fellow glitch pokemon researchers. Everything here has been personally verified across multiple cartridges and Game Boy hardware.
Site Directory
| Research Findings | The four forms of MissingNo, connection to 'M, and other glitch pokemon |
| Encounter Guide | Step-by-step instructions for the Old Man Glitch and the technical explanation of why it works |
| Safety & Side Effects | What ACTUALLY happens when you encounter MissingNo (and debunking the myths) |
Latest Updates
March 2026 - Site launched on Early Web Links! After years of hosting this on various free hosts that kept going down, I finally have a permanent home for my research. Thank you to Early Web Links for keeping the spirit of the old web alive.
Ongoing - Still testing MissingNo behavior on original hardware vs emulators. There are some subtle differences in how the Hall of Fame data gets corrupted that I want to document properly before publishing.
You are visitor number 002,847 since 1999
This site is not affiliated with Nintendo, Game Freak, or The Pokemon Company.
All research is conducted on personally owned cartridges and hardware.
~ Pokemon is a trademark of Nintendo. MissingNo is a trademark of NOBODY ~