Mario

Mario is the titular main protagonist of the Super Mario series and the sole playable character in Super Mario 64. He is a hero from the Mushroom Kingdom who saves Princess Peach from the clutches of the evil king of the Koopas, Bowser.

Textureless Mario Anomaly
Main Article: Textureless Mario Anomaly

The Textureless Mario Anomaly is a rare phenomenon that serves as a warning of future bugs and crashes. It’s said that when encountering the anomaly the HUD and screen will flicker, various objects along with the pause screen will appear black, sounds not playing and the game freezing, crashing or even displaying an error screen with the anomaly present along the bottom.

Anomalous Mario Manifestations
Main Article: Anomalous Mario Manifestations

Anomalous Mario Manifestations are instances where the AI replaces objects with Mario's model, usually ending up contorting the model in very bizarre ways.

Broken Mario Anomaly
Main Article: Broken Mario Anomaly

The Broken Mario Anomaly occurs at complete random and usually occurs when the cartridge is tampered with in a harmful way. The anomaly causes the player to lose control of Mario, and causes his body to distort in unnatural and unusual ways.

Gold Mario
Main Article: Gold Mario

Gold Mario is the nickname given to an entity that takes the model of Mario with a gold texture applied to it. It can manifest as either a challenging boss fight or as a power-up with properties very similar to the Metal Cap. It's said that beating the boss variant can unlock a myriad of different things, such as a new ending, a new difficulty, a final level or even a playable variant of Gold Mario.

Mario-Bowser Fusion
Main Article: Mario-Bowser Fusion

The Mario-Bowser Fusion is an anomaly seen in the Bowser boss fights of Mario 64, in which it replaces Bowser's upper head with the head of a capless Mario.

Ninja Mario
Main Article: Ninja Mario

Ninja Mario is a fan-made power-up that was rumored to be in Mario 64. In certain copies of Mario 64 Ninja Mario can appear as an actual power-up with various ninja abilities, with a wide range of reported ways to unlock him.

Possessed Mario
Main Article: Possessed Mario

The Possessed Mario anomaly is an extremely strange occurrence that causes Mario to do strange things such as levitating into the air, his head twisting in circles or forward and control of Mario being taken away during “possessions”.

The Mario Silhouette
Main Article: The Mario Silhouette

The Mario Silhouette is a completely black figure shaped like the titular plumber that can be found around Princess Peach’s Castle. It can jump into paintings, open star doors and can appear nearly anywhere in the castle, although a sighting of the silhouette is very rare as it seems to always be on the move.

Unintended Playable Characters
Main Article: Unintended Playable Characters

Unintended Playable Characters are characters that either because of the AI or modifications to the game, can be played as an unintended player character, as Mario was the only character that was intended to be playable. They usually play exactly like Mario, although it's not uncommon for changes to their speed, jump length, collision detection and interaction with objects.

Trivia

 * Before Charles Martinet's voice clips were implemented into the game, Mario used to use samples as a placeholder. These samples are from Best Service Voice Spectral and Warner Brothers' sound effects library.
 * Mario's voice samples from this game would go reused in Super Smash Bros. Melee and Super Mario Sunshine.
 * In Super Smash Bros. Melee, all of Mario's voice lines would originate from Super Mario 64 with the exception of one, which has Mario going "yeehaw". The existence of this voice clip amongst every other voice clip originating from Super Mario 64 implies that this voice clip could've been originally slated to appear in Super Mario 64, but was cut due to a lack of use.
 * Super Jerry 64