Other than the Norwegian Forest Cat, Colonel Meow is the only kitten in the game whose variants are all elusive.
Colonel Meow appears the earliest of all the Unique kittens in the game, appearing three regions earlier than any other. The next earliest is the Green Colonel Meow, in Amberfield, and then the Lion, in Eastport Harbor.
Colonel Meow is based on the popular internet meme cat, Colonel Meow, who held a world record for the longest hair on a cat.
Oddly enough, the Amberfield Colonel Meow and the Snowridge Valley Colonel Meow have the exact same stats. The only difference is in the uniform color.
The idea of Colonel Meow wearing a military uniform may come from Colonel Meow fanart.