Uploaded December 2016 | Updated September 2026, 3 weeks ago
This video shows the 'Snake' game being implemented in an actual Pokemon Crystal cartridge using arbitrary code execution exploits and other glitches found in the game.
The first part of the video is the demonstration, followed by a brief explanation of the whole process (begins at 5:04). As stated in the video, I was going to work on a more detailed document that was going to be available here once finished, and... it's already available here! - sites.google.com/site/crystalglitchystuff/articles/snake
Since that article covers the explanation in much greater detail than the second part of the video, you are encouraged to give it a read if you're interested! If you're looking for a lighter explanation without getting into the nitty-gritty of the process and the assembly routines though, you're also welcome to watch the second part of this video instead!
This video shows the 'Snake' game being implemented in an actual Pokemon Crystal cartridge using arbitrary code execution exploits and other glitches found in the game.
The first part of the video is the demonstration, followed by a brief explanation of the whole process (begins at 5:04). As stated in the video, I was going to work on a more detailed document that was going to be available here once finished, and... it's already available here! - sites.google.com/site/crystalglitchystuff/articles/snake
Since that article covers the explanation in much greater detail than the second part of the video, you are encouraged to give it a read if you're interested! If you're looking for a lighter explanation without getting into the nitty-gritty of the process and the assembly routines though, you're also welcome to watch the second part of this video instead!





![Pokemon Red / Blue - Unused (Glitch) Move Effects
This video is a compilation of unused move effects from 0x99 through 0xC3
Follow the byte at 0xCFD3 in the Memory viewer (RAM) to see which attack effect Im using each time.
Effects that didnt show any effect other than causing normal damage (e.g. 0x9E), crashed the dame (e.g. 0xA8), or were repeated (e.g. 0xB3), where cut from the video. Additional tests were made on move effects like 0x9D or 0xB8 to come up with a more accurate conclusion.
99 Normal damage + Haze effect
9A Normal damage + Bide effect
9B Thrash effect
9C Normal damage + Roar/Whirlwind effect
9D Normal damage + Makes the next move to hit 2-5 times? (notice that, in the video, the second time I was attacking with No Effect [00])
9E-9F No effect?
A0 Normal damage + Puts target to sleep
A1 Normal damage + Poisons target
A2-A6 No effect?
A7 Normal damage + Dug in a hole text + Forced to repeat attack next turn (its the turn when Dig would deal damage)
A8-A9 Crashes the game
AA Wrap effect
AB Normal damage + Dug in a hole text + Forced to repeat attack next turn (its the turn when Dig would deal damage)
AC Normal damage + Makes the next move to hit 2-5 times?
AD Crashes the game
AE Normal damage + Mist effect
AF Normal damage + Rage related text (doesnt lock the Pokemon into using the same move and neither the attack stat seems to increase)
B0 Recoil effect
B1 Normal damage + Causes confusion
B2-B7 Normal damage + Nothing happened! text
B8 Normal damage + Recovers HP = Max HP / 2 ?
B9 Normal damage + Transforms into opponent
BA-BF Normal damage + Lowers glitched stat
C0-C1 Normal damage + Reflect effect
C2 Normal damage + Poisons target
C3 Normal damage + Paralyzes target Pokemon Red / Blue - Unused (Glitch) Move Effects](https://i.ytimg.com/vi/h3-4AZGw4XU/mqdefault.jpg)




