Enemy Discoloring

Enemy Discoloring is an intentional quirk of the Personalization A.I., closely related to the concept of Dynamic Level Rearrangement. It's the name given to instances where regular enemies in the game have their colors, and sometimes behaviors, altered. These discolorations are usually consistent with their behaviors between copies and can either prove a lesser or greater challenge for the player.

Aesthetic
Aesthetic discolorations are usually the result of enemies ending up in levels that they don't usually belong, working in tandem with Dynamic Level Rearrangement. For instance, if a Goomba were to spawn in Hazy Maze Cave they would appear blue. This is believed to be in reference to how Goombas appear blue in underground levels in the original Super Mario Bros.

Behavioral
Behavioral discolorations not only change the color of enemies but alter the way that they move or interact with the player. These changes are typically minor, although there are a few examples such as Red Koopas that change the enemy in a substantial way.

Bosses
Several bosses have been reported to experience Enemy Discoloring, usually mimicking similar instances of Enemy Discoloring for similar enemies to the boss fight when applicable, though entirely unique instances of Enemy Discoloring for bosses have been reported. Bosses have been reported to have both aesthetic and behavioral instances of Enemy Discoloring and are also the rarest version of Enemy Discoloring. In all instances of boss Enemy Discoloring, dialogue is changed when applicable.

Anomalous Enemies
Several enemies of an anomalous nature have been reported to appear with Enemy Discoloring, causing some to initially mistake them for new versions of these enemies. These instances of Enemy Discoloring are notable as they all appear to be behavioral, with no aesthetic discolorations currently being reported.

Theorizing
The existence of Enemy Discoloring is entirely based off the rhetoric of players, although many of these players regard the same attributes of these discolored enemies. Some of the enemies referred to, specifically the Cyan Bully and Red Koopa Troopa, appear as unused assets in both Super Mario 64 and Super Mario 64 DS respectively. The appearance of the Red Koopa in Super Mario 64 DS, which is already speculated to be based on a very personalized version of Super Mario 64, might be based off of an instance of Enemy Discoloring.

Some people consider the White-eyed Chomp an example of Enemy Discoloring. This is due to how similar it is to the idea of changing the colors of enemies, with the eyes changing to lack pupils and make the eyes entirely white, and also because the White-eyed Chomp can sometimes exhibit differing behavior from its original counterpart, potentially meaning a behavioral Enemy Discoloring. This includes the Chain Chomp wandering aimlessly from its pole. The lack of pupils could be inferring that the Chain Chomp is blind, and therefore blindly running around.

Gallery

 * These images could very well be faked, take them with a grain of salt.